I am trying to research a problem with email from the TLD .PL not getting processed by our Exchange 2003 server. There is no record of the email in Message Tracking Center. We have a Barracuda Spam appliance - I see the message there so I know it gets to us. If I freeze the Messages pending submission queue it never shows up. This holds true even if I open a Telnet session and enter the email by hand. No error messages show up in the Telnet session - it looks like it goes through, however it does not.
Any troubleshooting tips? Perhaps the Message pending submission is not the correct queue to be looking in?