Am 07.11.2013 12:19, schrieb Simon Loewenthal:
> I have a postfix instance on Debian 6 that has never performed DNS > lookups with version number 2.7.1-1+squeeze1. > > Nov 6 17:40:54 lo postfix/smtpd[10283]: disconnect from unknown[82.2.1.3] > Real IP address obfuscated. If forward lookup (A record) and a reverse lookup (PTR) doesn't fit together, Postfix logs "unknown". Please check it with a double-lookup. Peer -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin http://www.heinlein-support.de Tel: 030 / 405051-42 Fax: 030 / 405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin