I am a Firefox man anyway.
What's Microsoft?
Never seen it…
Try seamonkey. It's the code upon which firefox is based, plus it has a built-in email client:
I've been a Firefox/Thunderbird user for some time and I've been very happy with both. Lately I've been having some issues with FF--I'll try to access a new page and get an error message which forces the program to close. Anybody else experiencing this? Almost seems like a bug in the program. I did just re-install Windows and all my programs and data on a new hard drive so it may be that I didn't get a clean install. Any thoughts?