I’m running freepbx distro 13 (centos 6 based) and I’m getting a constant send failure in the maillog. This started after a module update, here is a tail of my maillog:
Jun 8 09:26:06 freepbx sm-msp-queue[17524]: x53GL5C2026065: to=postmaster, delay=4+16:00:00, xdelay=00:00:00, mailer=relay, pri=11623117, relay=[127.0.0.1], dsn=4.0.0, stat=Deferred: 451 4.3.2 Please try again later
Jun 8 09:26:06 freepbx sendmail[17525]: x588L5DB017525: from=<>, size=1513723, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1]
Jun 8 09:26:06 freepbx sendmail[17525]: x588L5DC017525: Milter: from=<>, reject=451 4.3.2 Please try again later
Jun 8 09:26:06 freepbx sm-msp-queue[17524]: x53GL5C3026065: to=postmaster, delay=4+16:00:00, xdelay=00:00:00, mailer=relay, pri=11969409, relay=[127.0.0.1], dsn=4.0.0, stat=Deferred: 451 4.3.2 Please try again later
Jun 8 09:26:06 freepbx sendmail[17525]: x588L5DC017525: from=<>, size=1860015, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1]
Jun 8 09:26:06 freepbx sendmail[17525]: x588L5DD017525: Milter: from=<>, reject=451 4.3.2 Please try again later
Jun 8 09:26:06 freepbx sm-msp-queue[17524]: x53GL5C4026065: to=postmaster, delay=4+16:00:00, xdelay=00:00:00, mailer=relay, pri=12263313, relay=[127.0.0.1], dsn=4.0.0, stat=Deferred: 451 4.3.2 Please try again later
Jun 8 09:26:06 freepbx sendmail[17525]: x588L5DD017525: from=<>, size=2153919, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1]
Jun 8 09:26:06 freepbx mimedefang[7603]: x588L5D8017525: smfi_chgheader returned MI_FAILURE
Jun 8 09:26:06 freepbx mimedefang[7603]: x588L5D8017525: smfi_addheader returned MI_FAILURE
I run spamassassin and mimedefang on this freepbx machine. I don’t understand where this ‘email’ is coming from because in the log it says ‘from=<>’. Also this problem is causing unnecessary load on my machine. before the module update my daily mail activity was about 3 to 5Mb a day, now it’s about 35Mb a day.