[Logcheck-devel] Bug#448788: postfix/postgrey: "Sender address rejected: " are not filtered out

[Florin Iucha]

Package: logcheck-database
Version: 1.2.63
Severity: important


I am running postfix with postgrey for graylisting and I'm getting tons
of :

   Oct 31 16:20:21 hermes postfix/smtpd[6778]: NOQUEUE: reject: RCPT from $HOST[$IP]: 450 4.2.0 <>: Sender address rejected: Server unavailable.  Try again later.; from=<> to=<abqnm$WHATEVER at iucha.net> proto=ESMTP  helo=<$HOST>

I am getting too many of those with an zero-length from and with
abqnm$RANDOM_STRING as the originator, so I suspect it is some
clever antispam or open relay testing tool.  At any rate, it is
generating waay too much noise.

Thanks,
florin

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.22-2-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

-- debconf information:
  logcheck-database/conffile-cleanup: false