Well, I'd click the little mail logo in Communicator and the pop-up mail thingy didn't work. I tried my accounts on Yahoo & Gmail, couldn't sign in. Tried to create new mail accounts on different providers & only Hushmail allowed me to create an account, but it wouldn't let me sign in to actually use it. *rolls eyes*
However your post did jog my memory that the ISP had switched from the pop-up mail thingy to one like yahoo/gmail/etc. Didn't expect it to work after so much failure, but hey, I got in and was able to send my yahoo account stuff.
Thanks!