Ralf Hildebrandt a écrit : > * 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) >
and it's worst: $ host 118.71.113.0 0.113.71.118.in-addr.arpa domain name pointer adsl-dynamic-pool-xxx.fpt.vn. $ host 118.71.113.255 255.113.71.118.in-addr.arpa domain name pointer adsl-dynamic-pool-xxx.fpt.vn. all the IPs in the domain resolve to a silly name. they can't even use $GENERATE? anyway, they are listed on spamhaus. block and forget... >> 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.
