On 6/5/2012 9:29 AM, Raymond Dijkxhoorn wrote:
Looking more closely... Is this still work in progress?
;; ANSWER SECTION: comcast.net. 358 IN MX 5 mx3.comcast.net. comcast.net. 358 IN MX 10 mx1.comcast.net. comcast.net. 358 IN MX 5 mx2.comcast.net.
;; ADDITIONAL SECTION: mx2.comcast.net. 6958 IN A 76.96.30.116 mx3.comcast.net. 358 IN A 68.87.26.147 mx1.comcast.net. 358 IN AAAA 2001:558:fe14:70::22
You are now only accepting IPv6 if all IPv4 fails? Or will AAAA records for mx2 and mx3 added later?
Actually, I've had a problem with my version of sendmail on solaris choosing mx1.comcast.net and then reporting host not found. I think this is an issue with address selection, despite the server not being setup for v6 (os/sendmail are set for v6 support, but no assignment). I can't think of another reason why it would bounce 800+ emails with relay=mx1.comcast.net but have 0 logs for mx2/mx3. Jack