An email client (or MUA as in mail user agent) is a computer program that is used to read and send email.

Here is a list of some widely used email clients, in alphabetical order by operating system.

Mac OS:

Microsoft Windows: Unix/Linux: Palm OS:
  • Eudora
  • Palm VersaMail (Included with the Tungsten series of handhelds and the Zire 71 handheld)

Pocket PC:
  • Pocket Outlook