Microsoft on May 18 unveiled a host of new features as part of its revamped Windows Live Hotmail offering. The most widely used free Web-based email -- which boasts more than 8 billion messages per ...

For over a year now, email deliverability experts have been talking about the 'fact' that ISPs use engagement metrics (typically not defined by these so-called experts) to determine inbox placement.

Call it perfect timing. The same day Microsoft unveils a sweeping refresh to its Hotmail email offering, Google Apps hits the market with new gadgets to tweak and customize Gmail. Microsoft on Tuesday ...