Date: Mon, 04 Jan 2010 13:42:28 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Peter Ulrich Kruppa <ulrich@pukruppa.net> Cc: FreeBsd-Questions <freebsd-questions@freebsd.org> Subject: Re: sendmail: open-relay Message-ID: <4B41F044.3080800@infracaninophile.co.uk> In-Reply-To: <1262611186.9547.19.camel@pukruppa.net> References: <1262611186.9547.19.camel@pukruppa.net>
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Peter Ulrich Kruppa wrote:
> Am Montag, den 04.01.2010, 13:02 +0000 schrieb Matthew Seaman:=20
>> Peter Ulrich Kruppa wrote:
>>> I am running my own small mail-server, i.e. I use my desktop pc for
>>> sending and receiving my private mails.
>>> That worked quite nicely the last years. From time to time I tested
>> my
>>> mail-server via abuse.net's mail-relay tester. - Never got any
>>> positives.
>>> Now suddenly I receive one:
>>> Any ideas?
>> Plenty. But it would help a great deal if you showed us your
>> ${hostname}.mc.
> O.K. this is my complete pukruppa.net.mc
> --------------------------------------------
> divert(-1)
> #
[...]
which is exactly the same as the default freebsd.mc -- nothing suspicious=
there.
Hmmm... anything unusual (ie to do with domains not local to your machin=
e)
in /etc/mail/local-host-names or /etc/mail/virtusertable or=20
/etc/mail/mailertable? You're definitely running with that config file,
and you don't have anything like OpenBSD spamd(8) running that could inte=
rcept
incoming SMTP traffic?
If that's so, then I can't see how your machine could be an open relay. =
The
abuse.net relay tester must have been having a bad day. In fact, can you=
find the records in /var/mail/maillog to show abuse.net's server connecti=
ng
to yours in order to do the testing? It may be that it was connecting to=
somewhere else entirely. Or it was somehow trying to test relaying usin=
g
an address that was somehow actually valid on your system.
Cheers,
Matthew
--=20
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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