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AnthonyCasta -> Delivery Problems (31.Oct.2006 10:36:39 AM)
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Hi All ...
Recently I have been having problems trying to deliver mail to one domain. (att.net) I have been racking my brain and I can't seem to figure out why ... A little history about the network. We are running windows advaced server 2000, and exchange 2000. I have searched and searched, but I am not on any black list that I know of.
Here is a copy of the NDR:
emailaddress@att.net on 10/30/2006 4:23 PM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<mail.mydomain.com #5.5.0 smtp;550-my.ip.address blocked by ldap:ou=rblmx,dc=worldnet,dc=att,dc=net>
Thx in advace ... Tony
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