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VSE blocks port 25 (SMTP) by default. Just go to Access protection policies, A-V standard protection and untick "Prevent mass mailing worms ...".
FYI: if your VSE is being updated and managed centrally from ePO then this setting will be overwritten on the next update cycle ...
I simply added MSGTAGstatus.exe to the list of exclusions and it worked. I did not need to uncheck the block column in AVSP. Now we shall see if the University's ePO removes it. If so, I will request that they add the address for MSGTAG........Many thanks for your help......Greenbdb
Correct me if I am wrong, but it sounds like MsgTagStatus.exe is adding a tag (some might say, a 'WebBug') to the email message. (This would be an Outgoing Mail Proxy.) When the email is opened by the recipient (by whatever means) the tag communicates back to MsgTag server which in turn identifies the source sender.
Now, the question is, does this Tag reply using Port 25. If so, your students may also get blocked by their copy of VSE unless it also has the exclusion you set. (Most WebBugs use Port 80 to avoid this issue since that port must remain open for normal web browsing.)
I hope this has been helpful.
I really do not know what port MSGTAG uses (it is not 25), but I have determined that when my students open my email I am notified. The notification is pinned to the message that appears on an MSGTAG options page that lists every email that I send through Eudora. Again thanks for your help......Greenbdb
Thanks for the info! I'm guessing that the client MsgTag must be replying using port 80. It's how I would do it for the least interference from routers and firewalls.