* Andrew Thompson <andre...@aktzero.com>: > I'm a little confused by this entry in my log: > > Received: from adsl-dynamic-pool-xxx.fpt.vn (unknown [118.71.113.83]) > by mx.myserver.com (Postfix) with ESMTP id DAB68800D3 > for <__use...@aktzero.com>; Thu, 23 Jul 2009 18:23:54 +0000 (UTC) > > If I `host 118.71.113.83`, I get: > > 83.113.71.118.in-addr.arpa domain name pointer adsl-dynamic-pool-xxx.fpt.vn. > $ host adsl-dynamic-pool-xxx.fpt.vn Host adsl-dynamic-pool-xxx.fpt.vn not found: 3(NXDOMAIN)
> So where did the "unknown" come from, was that in the HELO? No, forward and reverse don'T match. adsl-dynamic-pool-xxx.fpt.vn is the HELO. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de