According to comScore, Yahoo Mail is the third largest mail provider with over 300 million users.

Kicker:

> in the U.S., Yahoo is No. 1, with 96.6 million active users

http://news.cnet.com/8301-13772_3-20114975-52/microsoft-aimi...

On the Kindle Fire (and my Android phone) at least, their mail app puts most others to shame. It's one thing they've done extremely well.

50? It's more than 50 million if I am not wrong. Get your facts right.