It is a free Microsoft Exchange 2003 email account. Yes, completely free.

A perfect companion for Pocket PC/Smartphone devices, plus any device that supports Active Sync.

You can get a free Exchange 2003 email account at

http://services.mail2web.com/FreeServices/m2wLive/m2wLive.asp

Comes with tons of storage, up to 100Mb size per email (send or receive), Active Sync and web based interface. Similar to other free email services, but this one supports