si.Mail si.Mail is a POP3 email client. It supports multiple mail accounts, HTML message view, multiple tabs, preview mail on server, automatic message classification, advanced message search, advanced pre/post download and after-send filters, RSS/ATOM feeds, and a virtual mailbox that shows messages from the last 24 hours.

Features

* Published under GPL (you don't have to pay for it if you are using it, full source code availability),
* Localization,
* Html message view
* MAPI, e-mail aliases support
* Control downloading of images, executing scripts, using ActiveX contros in html messages,
* Theme support,
* POP3, SMTP, SMTP AUTH, IMAP*, NTLM support for both POP3 and SMTP(yahoo, hotmail,...)* access through plug-ins,
* Multiple account support,
* Preview mail on Server,
* Automatic attachment compression,
* Colorize possible dangerous extensions,
* Remove of dangerous html tags before putting message to html viewer,
* Multiple profile support under one Windows account(profile),
* Plug-in support for importing and exporting of messages and address book,
* Use anti-virus application to verify attached files before open/save
* SSL & TSL connection,...
* Use plug-ins and view / print attached files directly from si.Mail
* store attachments in separate folder, so messages file can be smaller up to 33%
* advanced message search
* advanced pre-download, after-download and after-send filters
* RSS, Atom feeds support
* Minimize to system tray
* Portable, just copy full si.Mail folder to USB stick and go with your messages anywhere