rosenfieldusers.sourceforge.net
Date: Fri Nov 02 2007 - 09:09:17 CDT

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>> ===== syslog =====
>> warning: connect to Milter service
>> unix:/var/spool/MIMEDefang/mimedefang.sock: Permission denied
>> ================
>
> Yes, I see with spamass-milter, because my postfix/smtpd
> run chrooted

Aah, great hint. Thanks.

> and I didn't read the README

No comments :-).

> If the smtpd(8) or cleanup(8) process runs chrooted,
> an absolute pathname is interpreted relative to the
> Postfix queue directory

Beautiful.

I don't think the server runs chrooted though, because I've just fixed
the problem by upgrading mimedefang from the Linux distributors
default version to the newest stable release.

Doing an strace revealed that the permission denied error message from
Postfix was completely bogus, in fact it communicated fine through the
socket.

The problem was that Postfix was sending something and expecting the
filter to reply with something else, which the filter obviously did
not honour. It was a fill into a 4096-byte buffer which came back
with an empty result after a second or two, if I remember correctly.

Anyway, I'm guessing that the mimedefang folks have updated their
milter to work with Postfix, so problem solved :-).

(For me, at least - I've filed a bug with gentoo, asking them to keep
up with upstream :-p.)

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