Apple Mail 1.2.3 v551-552 screenshot thumbnail
Mail (aka Mail.app) is an email program made by Apple Computer included in Mac OS X. Mail in its current form for Mac OS X does not run on any operating system other than Mac OS X, however previous versions were included in NeXTSTEP and OPENSTEP.

Included Mac OS X, it integrates with other Apple applications such as Address Book and iCal. Mail includes features such as mail rules for mailboxes, junk mail filtering and multiple account management.

External links