application that tells you when your emails have been received and opened. It works alongside your existing mail program, sending you an email the moment your message is viewed
cross-platform mail and news client. It is available for X11/Unix and MS Win32 platforms, supporting a wide range of protocols and standards, including SMTP, POP3, IMAP, NNTP (including SSL support for all of them) and full MIME support.
You can : aggregate several rss to one, make an rss out of emails, make pdfs out of rss, send rss to mail, turn your pop account into an rss feed, make a podcast of rss with voice reading and so on.