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Command line options
-1 Disable SMTP piggybacking (equivalent to -R1)
-5 When the smtpfeed works only with IPv4 (IPv6) protocol
(specifing by -N option, etc.), and if destination host has
only AAAA (A) RRs on DNS respectively, messages will not be
bounced back with "Host not found" error, and fallbackmx
will be used
-A Try T_ANY query first to get MX list from DNS
-a alias Alias for the host (can be specified multiple times)
-b size TCP send buffer size (Default: system default)
-c name FQDN of the host (used as HELO parameter of SMTP)
(default is obtained by gethostname(2))
-d debugopt Debug options (specify like: "acel")
A: enable all debug options of small letter
a: address c: connection e: event h: hash
l: LMTP m: routing map n: DNS r: resolv
s: SMTP t: transaction u: resource
D: surpress delivery Q: DNS query only
-E Extract queueID information from "id" portion of Received:
header line inserted by sendmail. QueueID information will
be logged for enevy transactions even in runqueue processing.
-F Insert To: header field with envelope recipient address
when -1 option specified.
(Just for bounced address detection -- administrative use)
-F -F Modify envelope sender address like:
SenderUser+RecptUser=RecptDomain@SenderDomain
when -1 option specified. If you want to use this feature,
configure your mail server to receive such addresses.
Note: this modification will not be done when envelope sender
is <>. You should see the item on -S option below.
-g pgateway Protocol gateway host (Default: not defined)
(-5 option must be specified at the same time. -N4 or -N6 must
also be specified at the same time if compiled with -DINET6)
When -N4 specified (or compiled without -DINET6), if a MX has
IPv6 addresses, pgateway will be used as first MX. This feature
will be useful when delivery via pgateway with fat IPv6 network
is faster than direct delivery with narrow IPv4 network.
When -N6 specified, pgateway will be used if a MX has IPv4
addresses, conversely.
-h Show help message
-I queue-id Equivalent to -i but no purge information on RSET state
-i queue-id Queue-id generated by sendmail just for logging information
(macro name for queue-id in sendmail.cf is $i.)
-l facility Logging facility (Default: local5)
-M mapfile Path of routing map file (Default: not defined)
syntax of routing map file:
DOMAIN DEST1:DEST2:... # comments
on DOMAIN:
domain -- exact matching
.domain -- substring matching
on DEST:
hostname MX for hostname
[hostname] A for hostname
[IPaddress] IP address
MX MX for domain part of a mail address
MX? same as MX (skip to following dest.
even under DNS lookup failure)
A A for domain part of a mail address
=alias MX for an aliased mail address
e.g.)
# exact match
sub.my.domain A:[backup.server]
# substring match (true up the right side)
.co.jp quick.relay.server:MX
# aliasing (for BITNET routing in Japan)
.bitnet =.bitnet.ad.jp
# fallback MX style
.jp MX?:[fallback.mx]
# default configuration
. MX
-m fallbackmx Fallback MX host (Default: not defined)
destination when all MX do not respond or MX can not be
resolved by DNS.
-N domain Internet Domain (available with --enable-ipv6 configuration)
4: use IPv4 only, 6: use IPv6 only, B: use both of IPv4/IPv6
at random, B4: IPv4 then IPv6, B6: IPv6 then IPv4
(default is B6)
-n num Max socket number to be used (Default: (FD_SETSIZE-1)).
Do not specify larger number than it. Sizes around "fd_set"
of your system should also be changed and re-compiled
if you want to set larger max socket number)
-o source-addr Source address for SMTP connection
(Default: an appropriate address will be dynamically assigned)
-p port Source port number for sender side of SMTP connection.
(Default: a free port will be dynamically assigned)
-q num Max DNS query concurrency (Default: 50). 0 means unlimited.
-R num/file Max number of recipients to be sent in a SMTP transaction
from SMTPfeed. (Default: 100)
If a file is specified, number of recipients can be defined
par domain basis. e.g.:
example.jp 10
DEFAULT 50
If DEFAULT (for other domains) is not defined in the file,
100 is the default.
-r num Minimum number of recipients not to reject delivery operation.
(Default: 1)
-S /path File path in which senders address listed. If -F or -F -F
option specified and envelope sender address is matched with
one of lists in the file, -1 option is specified automatically.
-S pattern Format to be used at envelope sender address conversion when
-F -F option specified. (Default: <%s+%s=%s@%s>)
-s size Max size of deliverable messages.
(Default: unlimited)
-t category=val Timeouts (default values are shown in ())
Numbers followed by 's' means 'in seconds', by 'm' means
'in minutes' and by 'h' means 'in hours'. default is 'm'.
total: total processing limit (55m)
it will be take "total + quit"
connect: till TCP connection establishment (5m)
greet: till get SMTP greeting message (5m)
helo: till get response for HELO (5m)
mail: till get response for MAIL (10m)
rcpt: till get response for RCPT (60m)
data: till get response for DATA (5m)
body: till send next datablock (20m)
term: till get response for DATA termination (60m)
cache: for idle SMTP connection (5m)
rset: till get response for RSET (5m)
quit: till get response for QUIT (2m)
-u Enable SMTP connection caching (default: off)
-V Insert version information on Received: header line
-x no error even if MX RRs point absent A/AAAA RRs
-y Refer A RR if this host is the first MX
-z Disable SMTP pipelining
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