I am running SBS 2003 Exchange with Outlook 2003 on the client computers. I'm getting several instances of returned e-mails. I'm not an expert with exchange and need some help to figure out why certain e-mails are not being delivered.
Here are some examples:
email@example.com on 5/14/2006 2:08 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
The following recipient(s) could not be reached:
firstname.lastname@example.org on 5/9/2006 3:42 PM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<directtransport.com #5.5.0 smtp;521-EHLO/HELO from sender 220.127.116.11 does not map to directtransport.com in DNS>
Hope these 2 examples can help figure this out!