+###############
+# Options #
+###############
+
+# strip message body to 7 bits on input?
+_OPTION(SevenBitInput, `confSEVEN_BIT_INPUT')
+
+# 8-bit data handling
+_OPTION(EightBitMode, `confEIGHT_BIT_HANDLING', adaptive)
+
+# wait for alias file rebuild (default units: minutes)
+_OPTION(AliasWait, `confALIAS_WAIT', 5m)
+
+# location of alias file
+O AliasFile=ifdef(`ALIAS_FILE', `ALIAS_FILE', /etc/aliases)
+
+# minimum number of free blocks on filesystem
+_OPTION(MinFreeBlocks, `confMIN_FREE_BLOCKS', 100)
+
+# maximum message size
+_OPTION(MaxMessageSize, `confMAX_MESSAGE_SIZE', 1000000)
+
+# substitution for space (blank) characters
+_OPTION(BlankSub, `confBLANK_SUB', _)
+
+# avoid connecting to "expensive" mailers on initial submission?
+_OPTION(HoldExpensive, `confCON_EXPENSIVE')
+
+# checkpoint queue runs after every N successful deliveries
+_OPTION(CheckpointInterval, `confCHECKPOINT_INTERVAL', 10)
+
+# default delivery mode
+_OPTION(DeliveryMode, `confDELIVERY_MODE', background)
+
+# automatically rebuild the alias database?
+_OPTION(AutoRebuildAliases, `confAUTO_REBUILD')
+
+# error message header/file
+_OPTION(ErrorHeader, `confERROR_MESSAGE', /etc/sendmail.oE)
+
+# error mode
+_OPTION(ErrorMode, `confERROR_MODE', print)
+
+# save Unix-style "From_" lines at top of header?
+_OPTION(SaveFromLine, `confSAVE_FROM_LINES')
+
+# temporary file mode
+_OPTION(TempFileMode, `confTEMP_FILE_MODE', 0600)
+
+# match recipients against GECOS field?
+_OPTION(MatchGECOS, `confMATCH_GECOS')
+
+# maximum hop count
+_OPTION(MaxHopCount, `confMAX_HOP', 17)
+
+# location of help file
+O HelpFile=ifdef(`HELP_FILE', HELP_FILE, /usr/lib/sendmail.hf)
+
+# ignore dots as terminators in incoming messages?
+_OPTION(IgnoreDots, `confIGNORE_DOTS')
+
+# name resolver options
+_OPTION(ResolverOptions, `confBIND_OPTS', +AAONLY)
+
+# deliver MIME-encapsulated error messages?
+_OPTION(SendMimeErrors, `confMIME_FORMAT_ERRORS')
+
+# Forward file search path
+_OPTION(ForwardPath, `confFORWARD_PATH', /var/forward/$u:$z/.forward.$w:$z/.forward)
+
+# open connection cache size
+_OPTION(ConnectionCacheSize, `confMCI_CACHE_SIZE', 2)
+
+# open connection cache timeout
+_OPTION(ConnectionCacheTimeout, `confMCI_CACHE_TIMEOUT', 5m)
+
+# use Errors-To: header?
+_OPTION(UseErrorsTo, `confUSE_ERRORS_TO')
+
+# log level
+_OPTION(LogLevel, `confLOG_LEVEL', 10)
+
+# send to me too, even in an alias expansion?
+_OPTION(MeToo, `confME_TOO')
+
+# verify RHS in newaliases?
+_OPTION(CheckAliases, `confCHECK_ALIASES')
+
+# default messages to old style headers if no special punctuation?
+_OPTION(OldStyleHeaders, `confOLD_STYLE_HEADERS')
+
+# SMTP daemon options
+_OPTION(DaemonPortOptions, `confDAEMON_OPTIONS', Port=esmtp)
+
+# privacy flags
+_OPTION(PrivacyOptions, `confPRIVACY_FLAGS', authwarnings)
+
+# who (if anyone) should get extra copies of error messages
+_OPTION(PostMasterCopy, `confCOPY_ERRORS_TO', Postmaster)
+
+# slope of queue-only function
+_OPTION(QueueFactor, `confQUEUE_FACTOR', 600000)
+
+# queue directory
+O QueueDirectory=ifdef(`QUEUE_DIR', QUEUE_DIR, /var/spool/mqueue)
+
+# timeouts (many of these)
+_OPTION(Timeout.initial, `confTO_INITIAL', 5m)
+_OPTION(Timeout.helo, `confTO_HELO', 5m)
+_OPTION(Timeout.mail, `confTO_MAIL', 10m)
+_OPTION(Timeout.rcpt, `confTO_RCPT', 1h)
+_OPTION(Timeout.datainit, `confTO_DATAINIT', 5m)
+_OPTION(Timeout.datablock, `confTO_DATABLOCK', 1h)
+_OPTION(Timeout.datafinal, `confTO_DATAFINAL', 1h)
+_OPTION(Timeout.rset, `confTO_RSET', 5m)
+_OPTION(Timeout.quit, `confTO_QUIT', 2m)
+_OPTION(Timeout.misc, `confTO_MISC', 2m)
+_OPTION(Timeout.command, `confTO_COMMAND', 1h)
+_OPTION(Timeout.ident, `confTO_IDENT', 30s)
+_OPTION(Timeout.fileopen, `confTO_FILEOPEN', 60s)
+_OPTION(Timeout.queuereturn, `confTO_QUEUERETURN', 5d)
+_OPTION(Timeout.queuereturn.normal, `confTO_QUEUERETURN_NORMAL', 5d)
+_OPTION(Timeout.queuereturn.urgent, `confTO_QUEUERETURN_URGENT', 2d)
+_OPTION(Timeout.queuereturn.non-urgent, `confTO_QUEUERETURN_NONURGENT', 7d)
+_OPTION(Timeout.queuewarn, `confTO_QUEUEWARN', 4h)
+_OPTION(Timeout.queuewarn.normal, `confTO_QUEUEWARN_NORMAL', 4h)
+_OPTION(Timeout.queuewarn.urgent, `confTO_QUEUEWARN_URGENT', 1h)
+_OPTION(Timeout.queuewarn.non-urgent, `confTO_QUEUEWARN_NONURGENT', 12h)
+
+# should we not prune routes in route-addr syntax addresses?
+_OPTION(DontPruneRoutes, `confDONT_PRUNE_ROUTES')
+
+# queue up everything before forking?
+_OPTION(SuperSafe, `confSAFE_QUEUE')
+
+# status file
+O StatusFile=ifdef(`STATUS_FILE', `STATUS_FILE', /etc/sendmail.st)
+
+# time zone handling:
+# if undefined, use system default
+# if defined but null, use TZ envariable passed in
+# if defined and non-null, use that info
+ifelse(confTIME_ZONE, `USE_SYSTEM', `#O TimeZoneSpec=',
+ confTIME_ZONE, `USE_TZ', `O TimeZoneSpec=',
+ `O TimeZoneSpec=confTIME_ZONE')
+
+# default UID (can be username or userid:groupid)
+_OPTION(DefaultUser, `confDEF_USER_ID', nobody)
+
+# list of locations of user database file (null means no lookup)
+_OPTION(UserDatabaseSpec, `confUSERDB_SPEC', /etc/userdb)
+
+# fallback MX host
+_OPTION(FallbackMXhost, `confFALLBACK_MX', fall.back.host.net)
+
+# if we are the best MX host for a site, try it directly instead of config err
+_OPTION(TryNullMXList, `confTRY_NULL_MX_LIST')
+
+# load average at which we just queue messages
+_OPTION(QueueLA, `confQUEUE_LA', 8)
+
+# load average at which we refuse connections
+_OPTION(RefuseLA, `confREFUSE_LA', 12)
+
+# work recipient factor
+_OPTION(RecipientFactor, `confWORK_RECIPIENT_FACTOR', 30000)
+
+# deliver each queued job in a separate process?
+_OPTION(ForkEachJob, `confSEPARATE_PROC')
+
+# work class factor
+_OPTION(ClassFactor, `confWORK_CLASS_FACTOR', 1800)
+
+# work time factor
+_OPTION(RetryFactor, `confWORK_TIME_FACTOR', 90000)
+
+# shall we sort the queue by hostname first?
+_OPTION(QueueSortOrder, `confQUEUE_SORT_ORDER', priority)
+
+# minimum time in queue before retry
+_OPTION(MinQueueAge, `confMIN_QUEUE_AGE', 30m)
+
+# default character set
+_OPTION(DefaultCharSet, `confDEF_CHAR_SET', iso-8859-1)
+
+# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
+_OPTION(ServiceSwitchFile, `confSERVICE_SWITCH_FILE', /etc/service.switch)
+
+# dialup line delay on connection failure
+_OPTION(DialDelay, `confDIAL_DELAY', 10s)
+
+# action to take if there are no recipients in the message
+_OPTION(NoRecipientAction, `confNO_RCPT_ACTION', add-to-undisclosed)
+
+# chrooted environment for writing to files
+_OPTION(SafeFileEnvironment, `confSAFE_FILE_ENV', /arch)
+
+# are colons OK in addresses?
+_OPTION(ColonOkInAddr, `confCOLON_OK_IN_ADDR')
+
+# how many jobs can you process in the queue?
+_OPTION(MaxQueueRunSize, `confMAX_QUEUE_RUN_SIZE', 10000)
+
+# shall I avoid expanding CNAMEs (violates protocols)?
+_OPTION(DontExpandCnames, `confDONT_EXPAND_CNAMES')
+
+###########################
+# Message precedences #
+###########################
+
+Pfirst-class=0
+Pspecial-delivery=100
+Plist=-30
+Pbulk=-60
+Pjunk=-100
+
+#####################
+# Trusted users #
+#####################
+
+# this is equivalent to setting class "t"
+#Ft/etc/sendmail.trusted
+Troot
+Tdaemon
+Tuucp
+
+#########################
+# Format of headers #
+#########################
+
+H?P?Return-Path: $g
+HReceived: confRECEIVED_HEADER
+H?D?Resent-Date: $a
+H?D?Date: $a
+H?F?Resent-From: $q
+H?F?From: $q
+H?x?Full-Name: $x
+HSubject:
+# HPosted-Date: $a
+# H?l?Received-Date: $b
+H?M?Resent-Message-Id: <$t.$i@$j>
+H?M?Message-Id: <$t.$i@$j>
+ifdef(`_NULL_CLIENT_ONLY_',
+ `include(../m4/nullrelay.m4)m4exit',
+ `dnl')