Okay, so the only way that I can see on how to do this is by using the IMAPISupport::Notify COM object. Do not mistake the "::" convention for a perl module, there aren't really any perl mods for Exchange server (god help those programmers if there were). You may want to look into that documentation link at MSDN. The browse to it link is broken, but search around for the IMAPI stuff. You should be able to use the standard perl OLE/COM interfaces to use those objects.

Sadly, I wish I knew more about that setup to be able to help you, but this seems like it might be what you're looking for. Good luck. Again, the general documentation is under MAPI. (Messaging services in MSDN). Good luck

    --jb