Help with setting up a mail server
kraduk at googlemail.com
Wed Jul 21 18:35:50 UTC 2010
On 21 July 2010 16:24, Cristiano Deana <cristiano.deana at gmail.com> wrote:
> On Tue, Jul 20, 2010 at 3:26 PM, Aryeh M. Friedman
> <aryeh.friedman at gmail.com> wrote:
> > I am a consultant and was retained by my client to setup qmail or exim
> > on a VPS running 8.0-STABLE (i386). After setting up the DNS (A record
> > and MX record) we have been unable to send or receive mail.
> a) check if your dns are correct:
> # dig yourdomain.com mx
> # telnet mail.yourdomain.com 25
> does it reply or not?
> a) reply
> check if your mta is cofigured correctly:
> telnet mail.yourdomain.com 25 # write:
> ehlo gmail.com
> mail from: aryeh.friedman at gmail.com
> rcpt to: example_user at yourdomain.com
> Subject: Test
> does it reply with a
> 2XX code? with a 4XX code? 5XX code?
> b) doesn't reply
> does mail.yourdomain.com resolve to your mailserver's IP?
> is your daemon runnig?
> if you give us more REAL information (domain, ip, etc) we can hel you more.
> Cris, member of G.U.F.I
> Italian FreeBSD User Group
> freebsd-questions at freebsd.org mailing list
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while we are on the topic of debugging I would recomend exim as an MTA. I
manage a few large enterprise mail systems with 10M + active accounts. A lot
of them are legacy systems that we gained through acquisitions. I generally
have to support them until we can get the accounts migrated onto the main
platform. They are a mixture of exim, postfix, qmail, and sendmail, and
quite often are in a poor state when we first get our hands on them. I have
to say when you are getting mail routing issues exim is by the far the
easiest to debug mainly due to the -bt option. When you combine it with the
debug flag it produced a very detailed output on the mail routing. I have
never found such a feature in all the other MTA's above.
The configs are also very readable unlike sendmail.
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