On May 16, 2011, at 10:47 AM, /dev/rob0 wrote: > On Mon, May 16, 2011 at 10:29:10AM -0400, jason hirsh wrote: >> On May 16, 2011, at 9:51 AM, Wietse Venema wrote: >>> jason hirsh: >>>> 08:40:31.036997 IP mail-iy0-f182.google.com.51101 > >>>> tuna.theoceanwindow-bv.com.smtp: Flags [S], seq 850119283, win 5720, >>>> options [mss 1430,sackOK,TS val 2972295960 ecr 0,nop,wscale 6], length 0 >>> >>> So, you are receiving connection attempts from a Google system >>> mail-iy0-f182.google.com. This has IP address 209.85.210.182. >>> >>> I also notice that tuna.theoceanwindow-bv.com has an IP address >>> of 209.160.65.133. >>> >>> What is the output of >>> >>> ifconfig -a | grep 209.160 >> >> inet 209.160.65.133 netmask 0xfffff800 broadcast 209.160.71.255 >> >> (this is the IP handling mail services) >> >> inet 209.160.68.112 netmask 0xff000000 broadcast 209.255.255.255 >> >> >>> >>> If the netmask is mis-configured (say, 0xff000000) then that explains >>> why we see no responses to connection attempts from 209.85.210.182 >>> (and other 209.* IP addresses). > > Wietse's amazing crystal ball strikes again! :) > >>> The reason is that your machine is sending out ARP requests to the >>> local subnet for 209.85.210.182. Of course it gets no response, >>> and therefore it never replies to connection attempts from that IP >>> address. >>> >>> FYI this means that no-one in 209.* would be able to connect to >>> your web server as well. >> >> >> I am more then a little confused in that I have in fact received >> mail from that google server >> >> an example from message header is >> >> "Received: from mail-gw0-f54.google.com (mail-gw0-f54.google.com >> [74.125.83.54]) by tuna.theoceanwindow-bv.com (Postfix) with ESMTP > > mail-iy0-f182.google.com[209.85.210.182] is not the same as > mail-gw0-f54.google.com[74.125.83.54]
staring at my screen too long > >> id 11AB65C23 for <ja...@kasdivi.com>; Sat, 14 May 2011 22:37:41 >> -0400 (EDT)" > -- > Offlist mail to this address is discarded unless > "/dev/rob0" or "not-spam" is in Subject: header
