On Sat, Jun 22, 2019 at 09:01:28PM +1000, Russell Coker wrote: > We are currently having problems where mail Andrew sends to luv-main gets > blocked by localhost. > > # postconf -d|grep mynet > mynetworks = 127.0.0.0/8 10.10.10.0/24 [::1]/128 [2a01:4f8:140:71f5::]/64 > [fe80::]/64 > > Below are the relevant log entries. It seems that ::1 is not being accepted > as an exclusion for spam checks, from the above you can see that ::1 is in > mynetworks and from the attached main.cf you can see that permit_mynetworks is > before other checks. Any ideas as to what the problem might be and why it > only seems to affect Andrew's mail? > > To clarify, what happens is that outbound mail from the list server is sent to > localhost and the Postfix instance on localhost is rejecting it. > > >From the attached master.cf you can see that localhost is excluded from > SpamAssassin and ClamAV checks.
> Jun 18 16:21:47 itmustbe postfix/cleanup[23587]: CADE6B0AD: reject: header > From: achalmers--- via luv-main <luv-main@luv.asn.au> from localhost[::1]; > from=<luv-main-boun...@luv.asn.au> to=<rjh+...@cita.utoronto.ca> proto=ESMTP > helo=<itmustbe.luv.asn.au>: 5.7.1 550 Message rejected Mail from a likely spam > domain 10002 That's not a standard postfix rejection message, so it's coming from something else - perhaps one of your smtpd milters? googling for the error message text (in quotes) doesn't come up with anything, so it doesn't seem to be a common error message - it's probably a custom rule. try grepping for ""Mail from a likely spam domain" in your postfix & milter etc config files.. What domain is the mail coming from? has that domain somehow got itself onto an RBL? BTW, the fact that the message even gets a postfix queue id means that postfix has, at some stage, accepted the message. messages rejected during the initial smtpd session get tagged with NOQUEUE in the logs instead of a queue id. which means that it's unlikely to have anything to do with the ::1 address. Try examining the entire chain of events for a single message - i.e. grep for the postfix queue ID, e.g. 'grep CADE6B0AD: /var/log/mail.log'. This may show other related IDs that need to be grepped for if the message is passed to an external filter and then back into postfix (this is pretty normal on my postfix box, because I use amavisd as a content_filter, but I don't know if you'd see the same using a milter). (i wrote a perl script years ago to do a two-pass search for mail.log entries. give it a search regexp such as an email address and it'll find all the queue ids in the log matching that, then it'll grep for those queue ids in the log. you can find it at http://taz.net.au/postfix/scripts/mailgrep.pl. try it with something like: 'mailgrep.pl -s "from=<achalmers@" /var/log/mail.log') craig -- craig sanders <c...@taz.net.au> _______________________________________________ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
