I recently started getting a pop up window everytime I open Outlook.



The window of the pop up says
"Internet Security Warning"
and the text of the message says
"The server you are connected to is using a security certificate the could not be verified. The certificate's CN name does not match the passed value. Do you want to continue using this server?....Yes/No"

I always select YES, otherwise I cannot send/receive email.

I did not change any settings to prompt this message. Any ideas on why this happened and how to remove this message everytime I open Outlook.

Not sure if this has anything to do with Norton Antivirus/Internet Security which I have.

Thanks

You're probably using SSL with your POP3 or IMAP account. Ask your mail server administrator if this is expected. It has to do with how the server is configured. Most of the time the message can be safely ignored, but in some rare cases it could be a sign of a man-in-the-middle attack.