Environment: Exchange 2007 with all SPs and updates installed
Websense SurfControl in the DMZ as the smarthost/edge server
Problem: Most outbound mail is not affected. All emails to certain domains
are getting hung in the SurfControl queues.
Using mxtoolbox.com. Our domain is not on any blacklists and the DNS
information is correct. The SMTP test checks out good with some warnings on
connection time and transaction time. I ran the mxtoolbox.com tests against
a couple of domains we know we can't deliver to and they check out clean. I
sent a message from my gmail account to one of the domains and it got there
immediately.
We have a spf record.
The reject messages are being generated by SurfControl and are not helpful:
Your message could not be sent to all recipients yet. The system will keep
retrying.
**THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE **
Details:
Failed to send to: [email protected]
Failed attempts: 12
Last attempt: Tue, 06 Aug 2013 13:50:16 -0400
Status: [email protected]: [cust31236-4.in.mailcontrol.com],
Incomplete SMTP session (cause: idle timeout [cust31236-4.in.mailcontrol.com
]).
We have checked blacklists on several sites. The test on
blacklistcheck.comdid pop positive for
fl.chickenboner.biz, but I am not finding much helpful about getting off
their list.
The SurfControl server is managed by another team, and they said that more
verbose logs were not available. (I find that hard to believe)
Any ideas for troubleshooting or resolution are greatly appreciated.
Robert
