Hm, I work in customer service in a service broker situation [ah, hell. I work for Oakleaf Waste Management, I get paid to talk trash ] The way we are set up is the main database is in Access, and when we do certain things [like queue a call log to certain departments or fax using satisFAXion through office and outlook] it automatically generates emails. This is what is triggering the popups, it isnt a virus. I would assume that corporate geeks run updates to wincrap as required, and we are pretty much not online for the most part. I have one of the very rare non-it internet enabled computers at work and only use it on 3 or 4 fairly restricted sites for special projects - at our level we get pretty much no noninternal email. IT is pretty scrupulous about virus checking and protecting the system, almost anally so.
I am thinking it is someting in the registry, which might mean a service pack issue. This silly popup is exclusively an issue with the net satisFAXion and queue notifications that are automated in our work setup.
I say “may” because as I read it, the behavior cannot be turned off if you’re using Outlook as POP3 client (ie get your mail from an outside ISP). Your Outlook must be connected to a central Exchange server to adjust the behaviors.
If you are using POP3, more research by your IT folks might be able to find a way to do what you want, but I’m not optimistic.