Zimbra hits 20 million paid customers

YAHOO'S open sauce mail client Zimbra has more than 20 million paid mailboxes.

According to The VAR Guy there has been a huge increase in paid up users in the last seven months thanks to a deal with Comcast.

According to CNET Zimbra is the foundation for an enterprise challenge from Yahoo. This is despite the fact that most of Zimbra's customers fall into the education and small and medium-size business markets. µ