Date: Wed, 12 Sep 2007 06:48:26 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: johan Hartono <johan0214@yahoo.com> Cc: freebsd-questions@freebsd.org, 'Duane Hill' <d.hill@yournetplus.com> Subject: Re: 550 5.7.1 <some@any.com>... Relaying denied Message-ID: <46E77DAA.9040305@infracaninophile.co.uk> In-Reply-To: <710840.16669.qm@web50604.mail.re2.yahoo.com> References: <710840.16669.qm@web50604.mail.re2.yahoo.com>
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johan Hartono wrote:
> Yes, it is a very interesting topic I'd like to
> discuss next.
> I don't know why, in FreeBSD, even though you install
> postfix it will
> appears as sendmail. Will this become any problem?
All of the available MTAs will do that, because the standard Unix API
for an application to send e-mail is for that app to pipe the message
into the STDIN of /usr/sbin/sendmail. Alternative MTAs have always
therefore provided a high degree of sendmail compatibility and expect
to have binaries either installed as or linked to /usr/sbin/sendmail.
Unlike most other Unix or unix-oid systems, FreeBSD has a slightly
more sophisticated variation on this. /usr/sbin/sendmail is actually
a wrapper program and not Sendmail Brand sendmail(tm) at all -- see
mailwrapper(8) for details. Simply by editing the configuration file
/etc/mail/mailer.conf you can switch between sendmail-from-the-base-system, sendmail-from-ports, exim, postfix, qmail, ssmtp and probably half a
dozen others. mailer.conf also covers a number of other sendmail
related commands like newaliases(1) and hoststat(8).
The sendmail binary provided by the base system is installed as
/usr/libexec/sendmail/sendmail
Cheers,
Matthew
- --
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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