Hi all, I'm running postfix 2.7.1 from Debian testing.
I'm getting quite a bit of spam from machines in places like Vietnam whose IP addresses resolve to localhost. For example: postfix/smtpd[1427]: warning: 117.4.33.231: address not listed for hostname localhost postfix/smtpd[1427]: connect from unknown[117.4.33.231] policyd-spf[1508]: None; identity=helo; client-ip=117.4.33.231; helo=localhost; envelope-from=xx...@aguaclara.org; receiver=xx...@mega-nerd.com policyd-spf[1508]: None; identity=mailfrom; client-ip=117.4.33.231; helo=localhost; envelope-from=xx...@aguaclara.org; receiver=xx...@mega-nerd.com postfix/smtpd[1402]: 7D08B106DD6: client=unknown[117.4.33.231] postfix/cleanup[1510]: 7D08B106DD6: message-id=<e1pv4ra-0000xi...@aguaclara.org> postfix/qmgr[1395]: 7D08B106DD6: from=<xx...@aguaclara.org>, size=4971, nrcpt=1 (queue active) postfix/local[1511]: 7D08B106DD6: to=<xx...@mega-nerd.com>, relay=local, delay=1.3, delays=1.2/0/0/0.06, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail) postfix/qmgr[1395]: 7D08B106DD6: removed Is there a way to detect and reject any email from IP addresses falsly claiming to be localhost? Cheers, Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/
