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$OpenBSD: README,v 1.4 2007/12/11 16:43:14 millert Exp $
This directory contains the configuration files for sendmail(8).
The source for the .cf files lives in /usr/share/sendmail/cf.
You should make changes in the corresponding .mc file and not edit
the .cf files directly. Useful information may be found in
/usr/share/sendmail/README, /usr/share/sendmail/TUNING, and
/usr/share/doc/smm/08.sendmailop/op.me. For details on enabling
encrypted SMTP, see the starttls(8) man page.
Sendmail configuration files:
submit.cf Built from /usr/share/sendmail/cf/submit.mc.
Used when sendmail is invoked directly from
the command line to send mail (for instance,
when called by mail(1)).
localhost.cf Built from /usr/share/sendmail/cf/openbsd-localhost.mc.
Only allows connections from the local host, not
the network at large. This is the default
configuration file used on OpenBSD. See afterboot(8)
for more information.
sendmail.cf Built from /usr/share/sendmail/cf/openbsd-proto.mc.
A more full-featured configuration file that
allows SMTP connections from the internet.
Other files used by sendmail(8) in this directory include:
access Access database (blacklist, whitelist, etc).
aliases System aliases database.
helpfile Help file for sendmail(8).
local-host-names List of other hostnames to treat as local.
You do not need to list the system hostname,
the name(s) associated with any active network
interface or a CNAME that points to one of
those names. This file is read only at startup
or when sendmail(8) is sent SIGHUP.
genericstable Used to rewrite the From: line to a generic form.
Most often used to map login name -> First.Last
name in outgoing messages.
mailertable Used to override routing for particular (non-local)
domains.
relay-domains List of other domains to relay mail for.
By default, sendmail(8) will not relay for
foreign domains--if the mail is not destined
for (or sent by) a user in the local domain it
will be rejected. This file is read only at
startup or when sendmail(8) is sent SIGHUP.
virtusertable Virtual user table; maps incoming mail addresses
to alternate local usernames or aliases.
Note that by default, only sendmail.cf will use the access, local-host-names,
mailertable, relay-domains, userdb, and virtusertable files.
These files are not used by the default localhost.cf or submit.cf
since they are generally not needed for localhost-only configs.
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