si.Mail is a freeware and open source POP3 email client.
It supports multiple mail accounts, HTML message view, multiple tabs, themes, preview mail on server, integrated address book and advanced message search.
si.Mail offers unicode support for your email messages (inbox/outbox) and includes a RSS/ATOM feed reader.
Works great with Gmail and other POP3 free POP3 email providers.
Minimum system requirements
Celeron 400MHz, or AMD K6 400MHz,
Windows 2000, XP, 2003, Vista
IE 6.0 or newer,
13MiB of free disk space,
256MiB of system RAM,
Screen resolution 800×600 @ 24 bit colors.
Recommended system requirements
1.6GHz Pentium 4 or Athlon 1600+,
Windows 2000, XP, 2003, Vista
IE 6.0 or newer,
13MiB of free disk space,
512MiB of system RAM,
Screen resolution 1024×768 @ 32 bit colors.
Download the self-extracting EXE file and extract to a folder of your choice, then just run the "siMail.exe".