On Wed, Jan 10, 2007 at 08:33:04 -0800, Andrew Sackville-West wrote: [ snip: Jon Dowland's nice mini-tutorial about dig and MX records ]
> okay, so I had to try this to learn and > > [EMAIL PROTECTED]:~$ dig +short bigpond.com mx > 10 extmail.bigpond.com. > > [EMAIL PROTECTED]:~$ ping www.bigpond.com > PING www.bigpond.com (144.135.18.32) 56(84) bytes of data. > 64 bytes from 144.135.18.32: icmp_seq=1 ttl=233 time=212 ms > > cool, but... > > [EMAIL PROTECTED]:~$ ping extmail.bigpond.com > PING extmail.bigpond.com (144.140.80.13) 56(84) bytes of data. > 64 bytes from extmail.bigpond.com (144.140.80.13): icmp_seq=1 ttl=234 > time=364 ms > > that's a different IP. looks to me like the MX record is wrong. > > Am I doing that right? I think you should send yourself a test email via bigpond and check the header for the appropriate IP address in the "Received:" field(s). It is not unusual that the web server's IP is different from the one of the mail server. Also, additional authorized mail servers can be specified with an spf entry (http://www.openspf.org/SPF_Record_Syntax) in the TXT field: $ dig +short bigpond.com txt "v=spf1 ip4:144.140.81.0/24 ip4:144.140.82.0/23 ip4:144.140.91.0/24 ip4:144.140.92.0/23 ?all" -- Regards, Florian -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
