Concept Index

This is a general index of all issues discussed in this manual

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Index EntrySection

_
_m4 macros
__defpreproc__Built-in constants
__defstatedir__Built-in constants
__file__Built-in constants
__function__Built-in constants
__git__Built-in constants
__line__Built-in constants
__major__Built-in constants
__minor__Built-in constants
__module__Built-in constants
__package__Built-in constants
__patch__Built-in constants
__preproc__Built-in constants
__statedir__Built-in constants
__version__Built-in constants
_expand_datasegDebugging Functions
_heap_reserveDebugging Functions
_pollhostCompatibility Callout functions
_pollmxCompatibility Callout functions
_regDebugging Functions
_registerDebugging Functions
_stack_freeDebugging Functions
_wdDebugging Functions

-
--prefix, configure optionBuilding
--sysconfdir, configure optionBuilding
--with-dbm, configure optionBuilding

!
! (exclamation point), != operatorRelational expressions

(
(stringDKIM

@
@var, special constructFunctions

/
/etc/postfix/main.cfPostfix
/etc/resolv.confconf-resolver

\
\Dcommand summary
\Ecommand summary
\Lcommand summary
\Scommand summary
\Ucommand summary

#
#! ... !#’ initial commenttop-block
#!’ shell magic sequencetop-block
#includeComments
#include statementComments
#lineComments
#pragmaPragmas
#pragma dbpropDatabase functions
#pragma statementPragmas

<
< (left angle bracket), < operatorRelational expressions
< (left angle bracket), <= operatorRelational expressions

=
= (equals sign), = operatorRelational expressions

>
> (right angle bracket), > operatorRelational expressions
> (right angle bracket), >= operatorRelational expressions

~
~/.emacsUsing MFL Mode

$
$(n)Functions
$@Functions
$#Functions
$nFunctions

7
7bitFilters

8
8bitFilters

A
a, -a, mtasim option, summaryoption summary
acceptActions
accept action, definedActions
accept action, introducedStart Up
accept in ‘beginbegin/end
accept in ‘endbegin/end
ACCEPT_ACTIONaction hook
accessSystem functions
accessing variables from catchCatch and Throw
account probingSAV
aclconf-milter
aclconf-calloutd-server
actionsActions
actions, header manipulationActions
actions, introducedSimplest Configurations
actions, using in connect handlerHandlers
addActions
add action, definedActions
add in ‘beginbegin/end
add in ‘endbegin/end
adnsBuilding
Alan DobkinAcknowledgments
aliasFunctions
aliasesFunctions
aliases, looking upLocal Account Verification
all, --all mfdbtool option, introducedDatabase Maintenance
all, --all mfdbtool option, summaryInvoking mfdbtool
alwaysconf-callout
alwaysprotocol-calloutd
andBoolean expressions
append, --append, mtasim option, describedtraces
append, --append, mtasim option, summaryoption summary
argument number in the list of argumentsFunctions
arguments, catchCatch and Throw
arguments, optionalFunctions
asPolling
ASSERT_ARGCOUNTLoadable Library
ASSERT_ARGTYPELoadable Library
assignment to variableHELO Domain
assignment, definedAssignments
associativity, operatorsPrecedence
asynchronous syslogLogging and Debugging
auth-macrospmult-macros
automatic variablesFunctions

B
BFilters
back reference interpretationLiterals
back references, in program textBack references
backlogconf-server
backlogconf-calloutd-server
backslash interpretationLiterals
base64Filters
beginbegin/end
begin’ and acceptbegin/end
begin’ and addbegin/end
begin’ and continuebegin/end
begin’ and deletebegin/end
begin’ and discardbegin/end
begin’ and rejectbegin/end
begin’ and replacebegin/end
begin’ and returnbegin/end
begin’ and tempfailbegin/end
begin’, handler restrictionsbegin/end
begin, special handlerStart Up
begin, special handlerbegin/end
Ben McKeeganAcknowledgments
Berkeley DBBuilding
binaryFilters
bindtextdomainNLS Functions
bodyHandlers
body_has_nullsMail body functions
body_stringMail body functions
body-chunk, --body-chunk, mtasim option, summaryoption summary
body, handlerStart Up
breakLoops
break statementLoops
Brent SpencerAcknowledgments
bs, -bd, mtasim option, summaryoption summary
bs, -bs, mtasim option, summaryoption summary
building mailfromdBuilding
built-in and library functions, introducedFunctions and Modules
built-in constantsBuilt-in constants
BURST_DECODEMessage digest functions
burst_eb_min_lengthMessage digest functions
BURST_ERR_BODYMessage digest functions
BURST_ERR_FAILMessage digest functions
BURST_ERR_IGNOREMessage digest functions
byemodule structure

C
cache databaseDatabase Formats
cache_usedPredefined variables
cache_used variable, usage examplePredefined variables
cache_used, global variable, introducedCompatibility Callout functions
cache, disablingDatabase functions
cache, getting statusDatabase functions
caching DNS requestsSAV
calloutSMTP Callout functions
calloutconf-server
callout serverSMTP Timeouts
callout_closeSMTP Callout functions
callout_doSMTP Callout functions
callout_openSMTP Callout functions
callout_transcriptDebugging Functions
callout-socket, --callout-socket mailfromd option, summaryGeneral Settings
callout-urlconf-server
callout, describedSAV
calloutdcalloutd
cancel_program_traceDebugging Functions
caseConditionals
case, switch statementConditionals
catchCatch and Throw
catch argumentsCatch and Throw
catch scopeCatch and Throw
catch statementCatch and Throw
catch, accessing variables fromCatch and Throw
catch, returning fromCatch and Throw
catch, standaloneCatch and Throw
cdb_checkControl database
cdb_greylist_intervalControl database
cdb_nameControl database
cdb.mflControl database
charsetFilters
charsetFilters
check_hostSPF Functions
check_host function, introducedSPF Functions
checking SPF host recordsSPF Functions
clamavClamAV
ClamAVClamAV
clamav_virus_namePredefined variables
clamav_virus_name, global variableClamAV
clientpmult-client
client_addr, Sendmail macroSendmail
closeI/O functions
CNAME chainsconf-resolver
commandConfiguring Preprocessor
commandconf-preprocessor
command line arguments, parsing in MFLgetopt
command line, mailfromd invocation syntaxInvocation
commentsComments
compact, --compact mfdbtool option, introducedDatabase Maintenance
compact, --compact mfdbtool option, summaryInvoking mfdbtool
compaction, databaseDatabase Maintenance
Con TassiosAcknowledgments
Con Tassios greylisting typeGreylisting
concatenationConcatenation
conditional statementsConditionals
configconf-resolver
config-file, --config-file calloutd option, summaryinvocation-calloutd
config-help, --config-help calloutd option, summaryinvocation-calloutd
config-lint, --config-lint calloutd option, summaryinvocation-calloutd
config-verbose, --config-verbose calloutd option, summaryinvocation-calloutd
configuring the preprocessorConfiguring Preprocessor
confMAPDEF, Sendmail macroBuilding
confMILTER_MACROS_ENVFROM, mc file directiveSendmail
connectHandlers
connect-timeoutpmult-client
connect, handlerStart Up
connectionconf-timeout
constConstants
constants, built-inBuilt-in constants
constants, definingConstants
constants, using in literalsConstants
constants, using in program textConstants
continueActions
continue action, definedActions
continue action, introducedStart Up
continue in ‘beginbegin/end
continue in ‘endbegin/end
CONTINUE_ACTIONaction hook
controlling argument, getoptgetopt
copyI/O functions
copy-octalFilters
copy-passFilters
create_dsnMail Sending Functions
crlfFilters
crlfdotFilters
cross-referenceTesting Filter Scripts
ctype_mismatch, global variableCharacter Type
current_headerCurrent Message Functions
current_header_countCurrent Message Functions
current_header_nth_nameCurrent Message Functions
current_header_nth_valueCurrent Message Functions
current_messageCurrent Message Functions
customization, EmacsUsing MFL Mode
customization, MFL modeUsing MFL Mode

D
D, -D option, describedPreprocessor Usage
D, -D option, summaryPreprocessor Options
D, -D, mtasim option, summaryoption summary
D, \D, a mtasim commandinteractive mode
daemon, --daemon mailfromd option, summaryOperation Modifiers
daemon, --daemon, mtasim option, describeddaemon mode
daemon, --daemon, mtasim option, summaryoption summary
dataHandlers
data, handlerStart Up
databaseconf-database
databaseconf-database
database compactionDatabase Maintenance
database formatsDatabase Formats
database maintenanceDatabase Maintenance
database-modeconf-database
database-typeconf-database
database, listingBasic Database Operations
databases used by mailfromdDatabase Formats
db_expire_intervalDatabase functions
db_get_activeDatabase functions
db_nameDatabase functions
db_set_activeDatabase functions
dbbreakDatabase functions
dbdelDatabase functions
dbfirstDatabase functions
dbgetDatabase functions
dbinsertDatabase functions
dbkeyDatabase functions
DBMBuilding
DBM implementation, defaultconf-database
DBM schemeconf-database
dbmapDatabase functions
dbnextDatabase functions
dbpropdbprop
dbprop,Database functions
dbprop, pragmaDatabase functions
dbputDatabase functions
dbvalueDatabase functions
dclexUser-defined Exceptions
debugDebugging Functions
debugconf-debug
debugconf-calloutd-log
debugpmult-debug
debug_levelDebugging Functions
debug_specDebugging Functions
debug-level, --debug-level calloutd option, summaryinvocation-calloutd
debug, --debug calloutd option, summaryinvocation-calloutd
debug, --debug mailfromd option, introducedLogging and Debugging
debug, --debug mailfromd option, summaryLogging and Debugging Options
debug, --debug mfdbtool option, summaryInvoking mfdbtool
debuggingEcho
debugging levelLogging and Debugging
debugging the filter scriptTesting Filter Scripts
debugging, pmultpmult-conf
declaring milter state handlerSimplest Configurations
decode MIMEMessage body functions
decode MIMEMIME functions
defaultprotocol-calloutd
defaultconf-server
default communication portBuilding
default communication socketBuilding
default database typeconf-database
default exception handlingCatch and Throw
default expiration intervalBuilding
default syslog facilityLogging and Debugging
default user privilegesBuilding
default_callout_server_urlSMTP Callout functions
DEFAULT_EXPIRE_INTERVAL, configure variableBuilding
DEFAULT_EXPIRE_RATES_INTERVAL, configure variableBuilding
DEFAULT_SOCKET, configure variableBuilding
DEFAULT_STATE_DIR, configure variableBuilding
DEFAULT_SYSLOG_ASYNC, configure variableBuilding
DEFAULT_SYSLOG_ASYNC, configure variable420-43x
DEFAULT_USER, configure variableBuilding
define-macrospmult-macros
define, --define mailfromd option, describedPreprocessor Usage
define, --define mailfromd option, summaryPreprocessor Options
define, --define, mtasim option, summaryoption summary
definedm4 macros
deleteActions
delete action, definedActions
delete in ‘beginbegin/end
delete in ‘endbegin/end
delete, --delete mfdbtool option, introducedBasic Database Operations
delete, --delete mfdbtool option, summaryInvoking mfdbtool
dequoteString manipulation
dgettextNLS Functions
diagnostics channelLogging and Debugging
digest, messageMessage digest functions
disabling cacheDatabase functions
discardActions
discard action, definedActions
discard action, introducedStart Up
discard in ‘beginbegin/end
discard in ‘endbegin/end
DISCARD_ACTIONaction hook
DKIMSPF
DKIM_EXPL_BAD_ALGORITHMDKIM
DKIM_EXPL_BAD_BASE64DKIM
DKIM_EXPL_BAD_BODYDKIM
DKIM_EXPL_BAD_KEY_TYPEDKIM
DKIM_EXPL_BAD_QUERYDKIM
DKIM_EXPL_BAD_SIGDKIM
DKIM_EXPL_BAD_VERSIONDKIM
DKIM_EXPL_DNS_NOTFOUNDDKIM
DKIM_EXPL_DNS_UNAVAILDKIM
DKIM_EXPL_DOMAIN_MISMATCHDKIM
DKIM_EXPL_EXPIREDDKIM
DKIM_EXPL_FROMDKIM
DKIM_EXPL_INTERNAL_ERRORDKIM
DKIM_EXPL_KEY_REVOKEDDKIM
DKIM_EXPL_KEY_SYNTAXDKIM
DKIM_EXPL_NO_SIGDKIM
DKIM_EXPL_OKDKIM
DKIM_EXPL_OKDKIM
DKIM_EXPL_SIG_MISSDKIM
DKIM_EXPL_SIG_SYNTAXDKIM
dkim_explanationDKIM
dkim_explanation_codeDKIM
dkim_sendmail_commaizeDKIM
dkim_signDKIM
dkim_signing_algorithmDKIM
dkim_verified_signatureDKIM
dkim_verified_signature_tagDKIM
dkim_verifyDKIM
DKIM_VERIFY_OKDKIM
DKIM_VERIFY_PERMFAILDKIM
DKIM_VERIFY_TEMPFAILDKIM
DKIM, definedDKIM
dkim, moduleDKIM
DKIM, setting upSetting up a DKIM record
dlcallMfmod Interface
dlopenMfmod Interface
dngettextNLS Functions
dns_getaddrSimplified DNS functions
dns_getnameSimplified DNS functions
dns_querydns_query
dns_reply_countdns_query
dns_reply_ipdns_query
dns_reply_releasedns_query
dns_reply_stringdns_query
dns.mfldns_query
dns.mflSimplified DNS functions
do loopLoops
DomainKeys Identified MailDKIM
domainpartString manipulation
dotFilters
dropprotocol-calloutd
dump-code, --dump-code mailfromd option, summaryLogging and Debugging Options
dump-grammar-trace, --dump-grammar-trace mailfromd option, summaryLogging and Debugging Options
dump-lex-trace, --dump-lex-trace mailfromd option, summaryLogging and Debugging Options
dump-macros, --dump-macros mailfromd option, describedSendmail
dump-macros, --dump-macros mailfromd option, summaryLogging and Debugging Options
dump-tree, --dump-tree mailfromd option, summaryLogging and Debugging Options
dump-xref, --dump-xref mailfromd option, summaryLogging and Debugging Options

E
e_badmmqBuilt-in Exceptions
e_dbfailureBuilt-in Exceptions
e_divzeroBuilt-in Exceptions
e_eofBuilt-in Exceptions
e_existsBuilt-in Exceptions
e_failureBuilt-in Exceptions
e_formatBuilt-in Exceptions
e_ilseqBuilt-in Exceptions
e_invalBuilt-in Exceptions
e_invcidrBuilt-in Exceptions
e_invipBuilt-in Exceptions
e_invtimeBuilt-in Exceptions
e_ioBuilt-in Exceptions
e_macroundefBuilt-in Exceptions
e_noresolveBuilt-in Exceptions
e_not_foundBuilt-in Exceptions
e_rangeBuilt-in Exceptions
e_regcompBuilt-in Exceptions
e_ston_convBuilt-in Exceptions
e_successBuilt-in Exceptions
e_temp_failureBuilt-in Exceptions
e_urlBuilt-in Exceptions
E, -E option, describedPreprocessor Usage
E, -E option, summaryPreprocessor Options
E, -E option, summaryLogging and Debugging Options
E, \E, a mtasim commandexpect commands
echoEcho
echo, --echo mailfromd option, echo to stdout or file.Testing Filter Scripts
echo, --echo mailfromd option, summaryGeneral Settings
ehloprotocol-calloutd
ehlo_domainPredefined variables
ehlo-domainconf-callout
elifConditionals
elseConditionals
Emacs, MFL modeUsing MFL Mode
EMAIL_COMMENTSEmail processing functions
EMAIL_DOMAINEmail processing functions
EMAIL_LOCALEmail processing functions
email_mapEmail processing functions
EMAIL_MULTIPLEEmail processing functions
EMAIL_PERSONALEmail processing functions
EMAIL_ROUTEEmail processing functions
email_validEmail processing functions
email.mflEmail processing functions
enableconf-preprocessor
enableconf-database
enable-syslog-async, --enable-syslog-async, configure optionBuilding
enable-vrfyconf-callout
Enabling MFL modeUsing MFL Mode
encapsulation boundaries, RFC 934Message digest functions
endbegin/end
end’ and acceptbegin/end
end’ and addbegin/end
end’ and continuebegin/end
end’ and deletebegin/end
end’ and discardbegin/end
end’ and rejectbegin/end
end’ and replacebegin/end
end’ and returnbegin/end
end’ and tempfailbegin/end
end’, handler restrictionsbegin/end
end, special handlerStart Up
end, special handlerbegin/end
enumerationConstants
envfromHandlers
envfrom, handlerStart Up
envrcptHandlers
envrcpt, handlerStart Up
eohHandlers
eoh, handlerStart Up
eomHandlers
eom-timeoutpmult-client
eom, handlerStart Up
equals sign (=), = operatorRelational expressions
escapeString manipulation
estimated time of sending, prediction ofBasic Database Operations
exception handler scopeCatch and Throw
exception handler, returning fromCatch and Throw
exception handlersCatch and Throw
exception typesExceptions
exception-handling routinesCatch and Throw
exceptions, default handlingCatch and Throw
exceptions, definedExceptions
exceptions, raising from codeCatch and Throw
exceptions, symbolic namesExceptions
exclamation point (!), != operatorRelational expressions
expect mode, mtasimexpect commands
expire-intervalconf-database
expire-interval, --expire-interval mfdbtool option, summaryInvoking mfdbtool
expire, --expire mfdbtool option, introducedDatabase Maintenance
expire, --expire mfdbtool option, summaryInvoking mfdbtool
explicit type castsType casting
expressionsExpressions

F
F_OKSystem functions
f, Sendmail macroSendmail
Fail, SPF result codeSPF Functions
failureBuilt-in Exceptions
FAMILY_INETHandlers
FAMILY_INET6Handlers
FAMILY_STDIOHandlers
FAMILY_UNIXHandlers
fatal runtime errorsRuntime errors
fd_delimiterI/O functions
fd_set_delimiterI/O functions
FDL, GNU Free Documentation LicenseCopying This Manual
fiConditionals
fileconf-database
file, --file mfdbtool option, summaryInvoking mfdbtool
filter pipeFilters
filter script, debuggingTesting Filter Scripts
filter script, describedStart Up
filter script, running in test modeTesting Filter Scripts
filter_fdFiltering functions
filter_stringFiltering functions
Finding function definitionUsing MFL Mode
fnmatchesSpecial comparisons
for loopLoops
foreground, --foreground calloutd option, summaryinvocation-calloutd
foreground, --foreground mailfromd option, summaryGeneral Settings
format, --format mfdbtool option, introducedBasic Database Operations
format, --format mfdbtool option, summaryInvoking mfdbtool
format, --format mfdbtool option, using with --listBasic Database Operations
fromimport
fromFilters
fromPolling
from … importimport
fromrdFilters
func statement, function definitionFunctions
function arguments, countingFunctions
function arguments, getting the number ofFunctions
function callsFunctions and Modules
function definition, syntax ofFunctions
function returning voidFunctions
function, definedFunctions and Modules

G
g, -g, mtasim option, summaryoption summary
g, transform flagString transformation
gacopyz-log, --gacopyz-log mailfromd option, summaryLogging and Debugging Options
gacopyz-log, --gacopyz-log, mtasim option, summaryoption summary
GDBMBuilding
GeoIP2Geolocation functions
geoip2_dbnameGeolocation functions
geoip2_getGeolocation functions
geoip2_get_jsonGeolocation functions
geoip2_openGeolocation functions
geolocationGeolocation functions
getprotocol-calloutd
getbufsize(numberI/O functions
getbuftype(numberI/O functions
getdelimI/O functions
getdomainnameSystem functions
getenvSystem functions
gethostnameSystem functions
getlineI/O functions
getmacroMacro access
getmxSimplified DNS functions
getnsSimplified DNS functions
getoptgetopt
getpwnamPasswd functions
getpwuidPasswd functions
gettextNLS Functions
getting cache statusDatabase functions
global cleanup handlerstartup/shutdown
global startup handlerstartup/shutdown
globbing patternsSpecial comparisons
GNU Emacs, MFL modeUsing MFL Mode
GNU Readlineinteractive mode
greylistgreylist
greylistGreylisting functions
greylist databaseDatabase Formats
greylist_seconds_leftPredefined variables
greylist_seconds_left, global variableGreylisting functions
greylist_seconds_left, global variable, introducedGreylisting
greylisting typesGreylisting
greylisting, Con Tassios typeGreylisting
greylisting, traditionalGreylisting
groupconf-priv
group, --group calloutd option, summaryinvocation-calloutd
group, --group mailfromd option, summaryGeneral Settings
group, --group, mtasim option, describedinteractive mode
group, --group, mtasim option, summaryoption summary
groupsStarting and Stopping
growth policy, stackstacksize

H
handler argumentsHandlers
handler declarationSimplest Configurations
handler, definedHandlers
handler, describedStart Up
handler, global cleanupstartup/shutdown
handler, global startupstartup/shutdown
handler, session cleanupbegin/end
handler, session initializationbegin/end
handler, session startupbegin/end
handshake-timeoutconf-callout
hard STMP timeoutSMTP Timeouts
hasmxSimplified DNS functions
hasmx, definition of the functionCatch and Throw
hasnsSimplified DNS functions
headerHandlers
headerFilters
header manipulation actionsActions
header modificationHeader modification functions
header_addHeader modification functions
header_addHeader modification functions
header_deleteHeader modification functions
header_insertHeader modification functions
header_prefix_allHeader modification functions
header_prefix_patternHeader modification functions
header_renameHeader modification functions
header_rename.mflHeader modification functions
header_rename.mflHeader modification functions
header_rename.mflHeader modification functions
header_replaceHeader modification functions
header, handlerStart Up
Heap overrun; increase #pragma stacksize’, runtime errorRuntime errors
heloHandlers
heloconf-timeout
helo, handlerStart Up
heloarg_testSpecial test functions
heloarg_test.mflSpecial test functions
help, --help calloutd option, summaryinvocation-calloutd
HELP, mtasim statementinteractive mode
here documentHere Documents
hostprotocol-calloutd
hostfirstprotocol-calloutd
hostnameSimplified DNS functions
hostonlyprotocol-calloutd
htonlInternet address manipulation functions
htonsInternet address manipulation functions

I
i, Sendmail macroSendmail
i, Sendmail macro in MeTA1pmult-macros
i, Sendmail macro in PostfixPostfix
i, transform flagString transformation
i18nNLS Functions
iconvFilters
idconf-server
idconf-calloutd-server
ifConditionals
ignore-failed-reads, --ignore-failed-reads mfdbtool option, summaryInvoking mfdbtool
implicit type castsType casting
importimport
importing from modulesimport
include search path, introducedComments
include_onceComments
include-pathconf-base
include-path, --include-path mailfromd option, summaryGeneral Settings
including filesComments
indentation, MFL, defaultUsing MFL Mode
indexString manipulation
indexString manipulation
inet_atonInternet address manipulation functions
inet_ntoaInternet address manipulation functions
infinite loopLoops
initial-responseconf-timeout
inline-commentFilters
inline-commentFilters
INPUT_MAIL_FILTER, mc file directiveSendmail
internationalizationNLS Functions
intervalString manipulation
Invalid back-reference number’, runtime errorRuntime errors
Invalid exception number’, runtime errorRuntime errors
invocationInvocation
io_buffer_sizeI/O functions
io_bufferingI/O functions
io-timeoutconf-timeout
is_greylistedGreylisting functions
is_ipString manipulation
is_ip.mflString manipulation
isalnumCharacter Type
isalphaCharacter Type
isasciiCharacter Type
isblankCharacter Type
iscntrlCharacter Type
isdigitCharacter Type
isgraphCharacter Type
islowerCharacter Type
ismxSimplified DNS functions
isprintCharacter Type
ispunctCharacter Type
isspaceCharacter Type
isupperCharacter Type
isxdigitCharacter Type

J
Jan RafajAcknowledgments
Jeff BallardAcknowledgments
John McEleneyAcknowledgments

K
keywordsReserved Words

L
L, \L, a mtasim commandinteractive mode
l10nNLS Functions
last_poll_greetingPredefined variables
last_poll_heloPredefined variables
last_poll_hostPredefined variables
last_poll_host, global variable, introducedCompatibility Callout functions
last_poll_recvPredefined variables
last_poll_recv, global variable, introducedCompatibility Callout functions
last_poll_sentPredefined variables
last_poll_sent, global variable, introducedCompatibility Callout functions
left angle bracket (<), < operatorRelational expressions
left angle bracket (<), <= operatorRelational expressions
len_to_netmaskInternet address manipulation functions
lengthString manipulation
libmaxminddbGeolocation functions
library and built-in functions, introducedFunctions and Modules
line, #line statementComments
lineconFilters
lineconFilters
linelenFilters
lint modeTesting Filter Scripts
lint, --lint mailfromd option, introducedTesting Filter Scripts
lint, --lint mailfromd option, summaryLogging and Debugging Options
list, --list mfdbtool option, describedBasic Database Operations
list, --list mfdbtool option, summaryInvoking mfdbtool
listenconf-server
listenconf-calloutd-server
listenpmult-conf
listensSpecial test functions
listing a database contentsBasic Database Operations
literal concatenationConcatenation
literalsLiterals
local state directoryBuilding
local variablesFunctions
localdomainSystem functions
localdomain.mflSystem functions
localizationNLS Functions
localpartString manipulation
location-column, --location-column mailfromd option, describedTesting Filter Scripts
location-column, --location-column mailfromd option, summaryLogging and Debugging Options
log-facility, --log-facility calloutd option, summaryinvocation-calloutd
log-facility, --log-facility mailfromd option, introducedLogging and Debugging
log-facility, --log-facility mailfromd option, summaryLogging and Debugging Options
log-levelpmult-client
log-tag, --log-tag calloutd option, summaryinvocation-calloutd
log-tag, --log-tag mailfromd option, introducedLogging and Debugging
log-tag, --log-tag mailfromd option, summaryLogging and Debugging Options
loggerconf-debug
loggerconf-calloutd-log
logger, --logger calloutd option, summaryinvocation-calloutd
logger, --logger mailfromd option, introducedLogging and Debugging
logger, --logger mailfromd option, summaryLogging and Debugging Options
loopLoops
loop bodyLoops
loop statementLoops
loop, do-styleLoops
loop, for-styleLoops
loop, infiniteLoops
loop, while-styleLoops
ltrimString manipulation

M
m4Preprocessor
macro expansionLiterals
macro_definedMacro access
macros, MeTA1pmult-macros
macros, referencingSendmail Macros
mailconf-timeout
mail filtering languageMFL
mail sending rate, explainedRate Limit
Mail Transfer Agent (MTA)Start Up
mail-from-addressconf-callout
mailbox functionsMailbox functions
mailbox_append_messageMailbox functions
mailbox_closeMailbox functions
mailbox_get_messageMailbox functions
mailbox_messages_countMailbox functions
mailbox_openMailbox functions
mailer URLMail Sending Functions
mailer, --mailer mailfromd option, summaryGeneral Settings
mailfromprotocol-calloutd
mailfrom_addressPredefined variables
mailfromd, buildingBuilding
mailutilsBuilding
mailutils_set_debug_levelDebugging Functions
main, MFL functionRun Mode
maintenance, databaseDatabase Maintenance
mappwnamPasswd functions
mappwuidPasswd functions
match_cidrInternet address manipulation functions
match_cidr.mflInternet address manipulation functions
match_dnsblBlacklisting Functions
match_dnsbl, definitionSome Useful Functions
match_dnsbl.mflBlacklisting Functions
match_rhsblBlacklisting Functions
match_rhsbl.mflBlacklisting Functions
matchesSpecial comparisons
max-cname-chainconf-resolver
max-instancesconf-server
max-instancesconf-calloutd-server
max-mfmodsconf-runtime
max-open-mailboxesconf-runtime
max-open-messagesconf-runtime
max-pmilter-fdpmult-conf
max-streamsconf-runtime
max-threads-hardpmult-conf
max-threads-softpmult-conf
MaxRecipientsPerMessage, sendmail optionControlling Number of Recipients
memory chunk too big to fit into heap’, runtime errorRuntime errors
message digestMessage digest functions
message functionsMessage functions
message modification queueMessage modification queue
message_body_decodeMIME functions
message_body_is_emptyMessage functions
message_body_linesMessage body functions
message_body_rewindMessage body functions
message_body_sizeMessage body functions
message_body_to_streamMessage body functions
message_burstMessage digest functions
message_closeMessage functions
message_content_typeMIME functions
message_count_partsMIME functions
message_find_headerHeader functions
message_from_streamMessage functions
message_get_partMIME functions
message_has_headerHeader functions
message_header_countHeader functions
message_header_decodeMail header functions
message_header_encodeMail header functions
message_header_linesHeader functions
message_header_sizeHeader functions
message_is_multipartMIME functions
message_linesMessage functions
message_nth_header_nameHeader functions
message_nth_header_valueHeader functions
message_part_decode(numberMIME functions
message_read_body_lineMessage body functions
message_read_lineMessage functions
message_rewindMessage functions
message_sizeMessage functions
message_to_streamMessage functions
Message-ID, exportingLogging and Debugging
Message-ID, exporting in mc fileSendmail
Message-ID, using in mailfromd logsLogging and Debugging
meta1MeTA1
meta1 macrospmult-macros
MF_SIEVE_DEBUG_INSTRSieve Interface
MF_SIEVE_DEBUG_TRACESieve Interface
MF_SIEVE_FILESieve Interface
MF_SIEVE_LOGSieve Interface
MF_SIEVE_TEXTSieve Interface
mfdbtoolBasic Database Operations
mfdbtoolmfdbtool
MFLMFL
MFL mode,Using MFL Mode
MFL mode, enablingUsing MFL Mode
MFL mode, GNU EmacsUsing MFL Mode
mfl-basic-offsetUsing MFL Mode
mfl-case-line-offsetUsing MFL Mode
mfl-comment-offsetUsing MFL Mode
mfl-include-pathUsing MFL Mode
mfl-loop-continuation-offsetUsing MFL Mode
mfl-loop-statement-offsetUsing MFL Mode
mfl-mailfromd-commandUsing MFL Mode
mfl-mode.elUsing MFL Mode
mfl-returns-offsetUsing MFL Mode
mfmodmfmod
mfmod_data_type_str(mfmod_data_typeLoadable Library
mfmod_errorLoadable Library
mfmod_error_argtypeLoadable Library
mfmod_messageLoadable Library
mfmod_numberLoadable Library
MFMOD_PARAMLoadable Library
mfmod_stringLoadable Library
mfmod-pathconf-runtime
mfmod, interface moduleInterface Module
mfmod, loadable libraryLoadable Library
mfmod.hLoadable Library
mfmod.m4mfmodnew
mfmodnewmfmodnew
milter abortrset
milter stage handler argumentsHandlers
milter stage handler, definedHandlers
milter state handler, declaringSimplest Configurations
milter state handler, describedStart Up
milter_actionPredefined variables
milter_action_nameInformative Functions
milter_action_nameInformative Functions
milter_client_addressPredefined variables
milter_client_familyPredefined variables
milter_server_addressPredefined variables
milter_server_familyPredefined variables
milter_server_idPredefined variables
milter_statePredefined variables
milter_state_beginPredefined variables
milter_state_bodyPredefined variables
milter_state_codeInformative Functions
milter_state_connectPredefined variables
milter_state_dataPredefined variables
milter_state_endPredefined variables
milter_state_envfromPredefined variables
milter_state_envrcptPredefined variables
milter_state_eohPredefined variables
milter_state_eomPredefined variables
milter_state_headerPredefined variables
milter_state_heloPredefined variables
milter_state_nameInformative Functions
milter_state_nonePredefined variables
milter_state_shutdownPredefined variables
milter_state_startupPredefined variables
milter-actions, --milter-actions, mtasim option, summaryoption summary
milter-proto, --milter-proto, mtasim option, summaryoption summary
milter-socket, --milter-socket mailfromd option, summaryGeneral Settings
milter-timeoutconf-milter
milter-timeout, --milter-timeout mailfromd option, summaryTimeout Control
milter-timeout, --milter-timeout, mtasim option, summaryoption summary
milter-version, --milter-version, mtasim option, summaryoption summary
milter.mflPredefined variables
miltermacrosmiltermacros
MIME, decodingMessage body functions
MIME, decodingMIME functions
mime.mflMIME functions
mimedecodeMessage body functions
mimedecodeMIME functions
mimedecodeFilters
mmq_purgeMessage modification queue
modeprotocol-calloutd
modulemodule structure
module declarationmodule structure
module search pathimport
module-pathconf-base
module-path, --module-path mailfromd option, summaryGeneral Settings
module, definedFunctions and Modules
module, definedModules
MTAStart Up
mtasimmtasim
mtasim administrative commandsinteractive mode
mtasim auto modeinteractive mode
mtasim daemon modedaemon mode
mtasim expect modeexpect commands
mtasim, --mtasim mailfromd option, summaryGeneral Settings
mtasim, declare sender socketinteractive mode
mtasim, defining Sendmail macrosinteractive mode
mtasim, introducedTesting Filter Scripts
mtasim, listing Sendmail macrosinteractive mode
mtasim, undefining Sendmail macrosinteractive mode
mtasim, using in shell scriptsexpect commands
multiline stringsHere Documents
multiple sender addressesPredefined variables
multiple sender addresses, using with polling commands.Compatibility Callout functions
mx fnmatchesSpecial comparisons
mx matchesSpecial comparisons
mxfirstprotocol-calloutd
mxonlyprotocol-calloutd

N
N_m4 macros
Nacho González LópezAcknowledgments
name clashesShadowing
National Language SupportNLS Functions
Navigating through function definitionsUsing MFL Mode
negative expiration period, definedDatabase Formats
negative-expire-intervalconf-database
netmask_to_lenInternet address manipulation functions
Neutral, SPF result codeSPF Functions
neverconf-callout
neverprotocol-calloutd
nextLoops
next statementLoops
ngettextNLS Functions
NLSNLS Functions
nls.mflNLS Functions
No previous regular expression’, runtime errorRuntime errors
no-interactive, --no-interactive, mtasim option, summaryoption summary
no-preprocessor, --no-preprocessor mailfromd option, summaryPreprocessor Options
no-preprocessor, --no-preprocessor mailfromd option, usagePreprocessor Usage
no-site-config, --no-site-config calloutd option, summaryinvocation-calloutd
non_smtpd_milters, postfix configurationPostfix
non-blocking syslogLogging and Debugging
noneFilters
None, SPF result codeSPF Functions
notBoolean expressions
Not enough memory’, runtime errorRuntime errors
not_foundBuilt-in Exceptions
ntohlInternet address manipulation functions
ntohsInternet address manipulation functions
number of actual argumentsFunctions

O
OLD_EXCEPTION_CODES, preprocessor symbol43x-440
on statementPolling
ondemandconf-callout
ondemandprotocol-calloutd
openI/O functions
operator associativityPrecedence
operator precedence, definedPrecedence
optarggetopt
opterrgetopt
optimize, --optimize mailfromd option, summaryGeneral Settings
optindgetopt
optionconf-server
optional arguments to a functionFunctions
optional arguments, checking if suppliedFunctions
optoptgetopt
orBoolean expressions
Out of stack space; increase #pragma stacksize’, runtime errorRuntime errors
overriding initial variable valuesTesting Filter Scripts

P
parsing command line argumentsgetopt
passPass
pass-definesConfiguring Preprocessor
pass-definesconf-preprocessor
pass-includesConfiguring Preprocessor
pass-includesconf-preprocessor
Pass, SPF result codeSPF Functions
passing variable arguments on to another functionFunctions
pc out of range’, runtime errorRuntime errors
Peter MarkeloffAcknowledgments
Phil MillerAcknowledgments
pidfileconf-base
pidfileconf-calloutd-setup
pidfilepmult-conf
pidfileStarting and Stopping
pidfile, --pidfile calloutd option, summaryinvocation-calloutd
pidfile, --pidfile mailfromd option, summaryGeneral Settings
piespmult
pipeFilters
pmilter-debugpmult-debug
pmultpmult
pmult debuggingpmult-conf
pmult, describedpmult
poll command, standard verificationPolling
poll command, strict verificationPolling
poll keywordPolling
poll statement, definedPolling
poll.mflCompatibility Callout functions
port, --port mailfromd option, summaryGeneral Settings
port, --port, mtasim option, describedinteractive mode
port, --port, mtasim option, summaryoption summary
portprobeSpecial test functions
portprobe.mflSpecial test functions
positive expiration period, definedDatabase Formats
positive-expire-intervalconf-database
PostfixPostfix
postfix-macros.sedPostfix
pp-setupPreprocessor
pragmatic commentsPragmas
precedence, operatorsPrecedence
preciousrset
preciousVariables
precious variablesrset
predefined variablesPredefined variables
predict, --predict mfdbtool option, introducedBasic Database Operations
predict, --predict mfdbtool option, summaryInvoking mfdbtool
preprocessorconf-preprocessor
preprocessorPreprocessor
preprocessor configurationConfiguring Preprocessor
preprocessor setup filePreprocessor
preprocessor, --preprocessor mailfromd option, summaryPreprocessor Options
preprocessor, --preprocessor mailfromd option, usagePreprocessor Usage
preprocessor.commandConfiguring Preprocessor
preprocessor.pass-definesConfiguring Preprocessor
preprocessor.pass-includesConfiguring Preprocessor
preprocessor.setup-fileConfiguring Preprocessor
primitive_hasmxSimplified DNS functions
primitive_hasnsSimplified DNS functions
primitive_hostnameSimplified DNS functions
primitive_ismxSimplified DNS functions
primitive_resolveSimplified DNS functions
printfm4 macros
probe messageSAV
proceduresFunctions
progHandlers
program_traceDebugging Functions
progressEOM Functions
prompt, --prompt, mtasim option, summaryoption summary
ptr_validateSimplified DNS functions
publicVariables
publicFunctions

Q
QFilters
qrString transformation
qualifier, function declarationFunctions
qualifiers, variable declarationVariables
quarantineQuarantine functions
quitconf-timeout
quitprotocol-calloutd
quoted-printableFilters

R
R_OKSystem functions
raising exceptionsCatch and Throw
rateRate limiting functions
rate databaseDatabase Formats
rateokRate limiting functions
rateok.mflRate limiting functions
rc.mailfromdStarting and Stopping
rcptconf-timeout
rcpt_addEnvelope modification functions
rcpt_countPredefined variables
rcpt_deleteEnvelope modification functions
readI/O functions
read-timeoutpmult-client
readlineinteractive mode
regexregex
regular expression matchingSpecial comparisons
rejectActions
reject action, definedActions
reject action, introducedStart Up
reject in ‘beginbegin/end
reject in ‘endbegin/end
reject messages, marking cached rejectsPredefined variables
REJECT_ACTIONaction hook
relayedDatabase functions
relayed-domain-fileconf-base
relayed-domain-file, --relayed-domain-file mailfromd option, summaryGeneral Settings
replaceActions
replace action, definedActions
replace in ‘beginbegin/end
replace in ‘endbegin/end
replbodyBody Modification Functions
replbody_fdBody Modification Functions
replstrString manipulation
requireFunctions and Modules
requireimport
requiring modulesimport
reserved wordsReserved Words
resolv-conf-file, --resolv-conf-file calloutd option, summaryinvocation-calloutd
resolv-conf-file, --resolv-conf-file mailfromd option, summaryGeneral Settings
resolveSimplified DNS functions
resolverconf-resolver
return in ‘beginbegin/end
return in ‘endbegin/end
return statement, definedFunctions
returning from a catchCatch and Throw
returning from an exception handlerCatch and Throw
returns statement, function definitionFunctions
reuseaddrconf-server
reuseaddrconf-calloutd-server
revipString manipulation
revip, definition ofSome Useful Functions
revstrString manipulation
rewindI/O functions
rfc822Filters
right angle bracket (>), > operatorRelational expressions
right angle bracket (>), >= operatorRelational expressions
rindexString manipulation
rindexString manipulation
RSETrset
rsetconf-timeout
rtrimString manipulation
runprotocol-calloutd
run modeRun Mode
run, --run mailfromd option, describedRun Mode
run, --run mailfromd option, summaryOperation Modifiers
runtimeconf-runtime
runtime errorRuntime errors
runtime errors, fatalRuntime errors
runtime errors, tracingRuntime errors

S
s-expressionString transformation
S, \S, a mtasim commandinteractive mode
s, Sendmail macroHELO Domain
s, Sendmail macroSendmail
saSpamAssassin
sa_codePredefined variables
SA_FORGETSpamAssassin
sa_format_report_headerString manipulation
sa_format_scoreString manipulation
sa_keywordsPredefined variables
sa_keywords, global variableSpamAssassin
SA_LEARN_HAMSpamAssassin
SA_LEARN_SPAMSpamAssassin
SA_REPORTSpamAssassin
sa_score, global variableSpamAssassin
SA_SYMBOLSSpamAssassin
sa_thresholdPredefined variables
sa_threshold, global variableSpamAssassin
sa.mflString manipulation
safedb_verbosePredefined variables
safedb_verboseDatabase functions
safedb.mflDatabase functions
safedbdelDatabase functions
safedbgetDatabase functions
safedbmapDatabase functions
safedbputDatabase functions
scope of a catchCatch and Throw
scope of exception handlersCatch and Throw
scope of visibilityscope of visibility
scope of visibility, functionsFunctions
scope of visibility, variablesVariables
script file checkingTesting Filter Scripts
script-fileconf-base
scripting, parsing command line argumentsgetopt
sedString transformation
selecting syslog facilityLogging and Debugging
send_dsnMail Sending Functions
send_mailMail Sending Functions
send_messageMail Sending Functions
send_textMail Sending Functions
sender address verification, describedSAV
sender address verification, limitationsLimitations
Sender Policy FrameworkSPF
Sender Policy Framework, definedSPF Functions
sender verification, writing testsPolling
sender-socket, --sender-socket, mtasim option, summaryoption summary
sending rate, explainedRate Limit
Sendmail macros, exportingSendmail
Sendmail macros, referencingSendmail Macros
sendmail macros, setting from the command lineTesting Filter Scripts
Sergey AfoninAcknowledgments
serverconf-server
serverconf-calloutd-server
server, calloutSMTP Timeouts
session cleanup handlerbegin/end
session startup handlerbegin/end
setVariables
setAssignments
set_fromEnvelope modification functions
set, --set calloutd option, summaryinvocation-calloutd
setbuf(numberI/O functions
setup-fileConfiguring Preprocessor
setup-fileconf-preprocessor
setvarconf-base
shadowing, constant–constantShadowing
shadowing, definedShadowing
shadowing, variableShadowing
shadowing, variable–constantShadowing
show-config-options, --show-config-options calloutd option, summaryinvocation-calloutd
show-defaults, --show-defaults mailfromd option, introducedDatabases
show-defaults, --show-defaults mailfromd option, summaryInformational Options
SHUT_RDI/O functions
SHUT_RDWRI/O functions
SHUT_WRI/O functions
shutdownstartup/shutdown
shutdownI/O functions
shutdown, special handlerstartup/shutdown
sidprotocol-calloutd
sieveSieve Interface
SieveSieve Interface
sieve.mflSieve Interface
SIGHUPStarting and Stopping
SIGINTStarting and Stopping
signalsStarting and Stopping
SIGQUITStarting and Stopping
SIGTERMStarting and Stopping
Simon ChristianAcknowledgments
Simon KelleyBuilding
single-processconf-server
single-processconf-calloutd-server
single-process, --single-process calloutd option, summaryinvocation-calloutd
single-process, --single-process mailfromd option, summaryLogging and Debugging Options
site-start.elUsing MFL Mode
sleepSystem functions
smtp-starttlsconf-callout
smtp-timeoutconf-timeout
smtp-timeoutconf-timeout
smtpd_milters, postfix configurationPostfix
socket mapSockmaps
sockmap_lookupSockmaps
sockmap_single_lookupSockmaps
sockmap.mflSockmaps
soft SMTP timeoutSMTP Timeouts
SoftFail, SPF result codeSPF Functions
source-info, --source-info calloutd option, summaryinvocation-calloutd
source-info, --source-info mailfromd option, summaryLogging and Debugging Options
source-ipconf-base
source-ipconf-calloutd-setup
source-ip, --source-ip calloutd option, summaryinvocation-calloutd
source-ip, --source-ip calloutd option, summaryinvocation-calloutd
source-ip, --source-ip mailfromd option, summaryGeneral Settings
SpamAssassinSpamAssassin
spamcSpamAssassin
spamdSpamAssassin
spawnI/O functions
SPFSPF
spf_check_hostSPF Functions
spf_explanationSPF Functions
spf_explanation_prefixSPF Functions
spf_mechanismSPF Functions
spf_status_stringSPF Functions
spf_test_recordSPF Functions
SPF, checking host recordSPF Functions
SPF, definedSPF Functions
spf.mflSPF Functions
sprintfString formatting
ssl-ca-fileconf-callout
ssl-certificate-fileconf-callout
ssl-key-fileconf-callout
ssl-prioritiesconf-callout
stack growth policystacksize
stack traces, readingRuntime errors
Stack underflow’, runtime errorRuntime errors
stack_traceDebugging Functions
stack_trace function, introducedRuntime errors
stack-traceconf-debug
stack-trace, --stack-trace mailfromd option, explainedRuntime errors
stack-trace, --stack-trace mailfromd option, summaryLogging and Debugging Options
stacksizestacksize
stage handler argumentsHandlers
stage handler, definedHandlers
standalone catchCatch and Throw
standard address verificationSAV
standard error, using for diagnostics outputLogging and Debugging
standard verification with pollPolling
starttlsprotocol-calloutd
STARTTLS in SMTP callout sessionsconf-callout
startupstartup/shutdown
startupStarting and Stopping
startup, special handlerstartup/shutdown
state handler, declaringSimplest Configurations
state-directoryconf-base
state-directoryconf-calloutd-setup
state-directory, --state-directory calloutd option, summaryinvocation-calloutd
state-directory, --state-directory mailfromd option, summaryGeneral Settings
state-directory, --state-directory mfdbtool option, summaryInvoking mfdbtool
statedir, --statedir, mtasim option, describedinteractive mode
statedir, --statedir, mtasim option, summaryoption summary
statementsStatements
statements, conditionalConditionals
staticVariables
staticFunctions
status.mflExceptions
status.mflBuilt-in Exceptions
status.mfl, moduleExceptions
stderr, --stderr calloutd option, summaryinvocation-calloutd
stderr, --stderr mailfromd option, summaryLogging and Debugging Options
stdio, --stdio, mtasim option, summaryoption summary
stdpollCompatibility Callout functions
strftimeSystem functions
strftimeSystem functions
strict address verificationSAV
strict verification with pollPolling
strictpollCompatibility Callout functions
string_list_iteratem4 macros
strip_domain_partString manipulation
strip_domain_part, definition ofSome Useful Functions
strip_domain_part.mflString manipulation
substrString manipulation
substrString manipulation
substringString manipulation
successBuilt-in Exceptions
supplementary groupsStarting and Stopping
switchConditionals
switch statementConditionals
syntax checkTesting Filter Scripts
syntax-check, --syntax-check mailfromd option, introducedTesting Filter Scripts
syntax-check, --syntax-check mailfromd option, summaryLogging and Debugging Options
syslogSyslog Interface
syslog facility, defaultLogging and Debugging
syslog facility, selectingLogging and Debugging
syslog tagLogging and Debugging
syslog, --syslog calloutd option, summaryinvocation-calloutd
syslog, --syslog mailfromd option, summaryLogging and Debugging Options
syslog, asynchronousLogging and Debugging
syslog, default implementationLogging and Debugging
syslog, non-blockingBuilding
syslog, non-blockingLogging and Debugging
syslog, using for diagnostics outputLogging and Debugging
syslog.mflSyslog Interface
systemSystem functions
system-wide startup scriptStarting and Stopping

T
tbf databaseDatabase Formats
tbf_rateRate limiting functions
temp_failureBuilt-in Exceptions
tempfailActions
tempfail action, definedActions
tempfail action, introducedStart Up
tempfail in ‘beginbegin/end
tempfail in ‘endbegin/end
TEMPFAIL_ACTIONaction hook
tempfileI/O functions
test, --test mailfromd option, introducedTesting Filter Scripts
test, --test mailfromd option, specifying handler nameTesting Filter Scripts
test, --test mailfromd option, summaryOperation Modifiers
TexinfoConventions
textdomainNLS Functions
Thomas LynchAcknowledgments
throwCatch and Throw
timeSystem functions
time formats, for --time-format optionTime and Date Formats
Time Interval Specificationconf-types
time-format, --time-format mfdbtool option, summaryInvoking mfdbtool
timeoutprotocol-calloutd
timeout escalationSMTP Timeouts
tlsconf-callout
TLS supportconf-callout
tolowerString manipulation
toupperString manipulation
trace file, mtasimtraces
trace-actionsconf-debug
trace-file, --trace-file, mtasim option, describedtraces
trace-file, --trace-file, mtasim option, summaryoption summary
trace-programconf-debug
trace-program, --trace-program mailfromd option, summaryLogging and Debugging Options
trace, --trace mailfromd option, introducedLogging and Debugging
trace, --trace mailfromd option, summaryLogging and Debugging Options
transcriptconf-debug
transcriptconf-calloutd-log
transcript, --transcript calloutd option, summaryinvocation-calloutd
transcript, --transcript mailfromd option, introducedLogging and Debugging
transcript, --transcript mailfromd option, output exampleLogging and Debugging
transcript, --transcript mailfromd option, summaryLogging and Debugging Options
try statementCatch and Throw
try–catch constructCatch and Throw
trying several sender addressesCompatibility Callout functions
typepmult-client
type casts, explicitType casting
type casts, implicitType casting

U
U, -U option, describedPreprocessor Usage
U, -U option, summaryPreprocessor Options
u, -u, mtasim option, summaryoption summary
U, \U, a mtasim commandinteractive mode
umaskSystem functions
unameSystem functions
undefine, --undefine mailfromd option, describedPreprocessor Usage
undefine, --undefine mailfromd option, summaryPreprocessor Options
unescapeString manipulation
unescapeString manipulation
unfoldMail header functions
unlinkSystem functions
upgrading from 1.x to 2.x1x-2x
upgrading from 2.x to 3.0.x2x-30x
upgrading from 3.0.x to 3.130x-31x
upgrading from 3.1.x to 4.031x-400
Upgrading from 4.0 to 4.1400-410
Upgrading from 4.1 to 4.2410-420
Upgrading from 4.2 to 4.3.x420-43x
Upgrading from 4.3.x to 4.443x-440
Upgrading from 4.4 to 5.0440-500
Upgrading from 5.0 to 5.1500-510
Upgrading from 5.x to 6.05x0-600
Upgrading from 6.0 to 7.0600-700
Upgrading from 7.0 to 8.0700-800
Upgrading from 8.13 to 8.148130-8140
Upgrading from 8.14 to 8.158140-8150
Upgrading from 8.2 to 8.3820-830
Upgrading from 8.2 to 8.4820-830
Upgrading from 8.5 to 8.6850-860
Upgrading from 8.7 to 8.8870-880
urlpmult-client
URL, mailerMail Sending Functions
usage, --usage calloutd option, summaryinvocation-calloutd
userconf-priv
user privilegesStarting and Stopping
user, --user calloutd option, summaryinvocation-calloutd
user, --user mailfromd option, summaryGeneral Settings
user, --user, mtasim option, describedinteractive mode
user, --user, mtasim option, summaryoption summary

V
v, -v, mtasim option, summaryoption summary
valid_domainSpecial test functions
valid_domain, definitionSome Useful Functions
valid_domain.mflSpecial test functions
validuserSpecial test functions
vaptrgetopt
variable assignmentHELO Domain
variable assignmentVariables
variable assignmentAssignments
variable declarationHELO Domain
variable declarationsVariables
variable interpretationLiterals
variable lexical scopeVariables
variable number of argumentsFunctions
variable shadowingShadowing
variable values, setting from the command lineTesting Filter Scripts
variable, --variable mailfromd option, introducedTesting Filter Scripts
variable, --variable mailfromd option, summaryGeneral Settings
variable, assigning a valueVariables
variable, preciousrset
variables, accessing from catchCatch and Throw
variables, automaticFunctions
variables, declaringVariables
variables, definedVariables
variables, introducedHELO Domain
variables, localFunctions
variables, preciousVariables
variables, predefinedPredefined variables
variables, referencingVariables
variadic functionFunctions
verbose, --verbose, mtasim option, summaryoption summary
verbosity levelLogging and Debugging
vercmpString manipulation
Verifying script syntaxUsing MFL Mode
verp_extract_userString manipulation
version, --version calloutd option, summaryinvocation-calloutd
voidType casting
voidInterface Module
void functionsFunctions
vrfyprotocol-calloutd
VRFY, SMTP statementconf-callout

W
W_OKSystem functions
when keywordPolling
whileLoops
while loopLoops
whitelistingGreylisting
WITH_GEOIP2Geolocation functions
WITH_GEOIP2Geolocation functions
writeI/O functions
write_bodyI/O functions
write-timeoutpmult-client

X
X_OKSystem functions
X, -X, mtasim option, summaryoption summary
x, transform flagString transformation
XMLFilters
xref, --xref mailfromd option, summaryLogging and Debugging Options

Z
Zeus PanchenkoAcknowledgments