1)   WebMail Assistant for Hotmail and Yahoo EMail 1.5
Dramatically improves Yahoo Mail/Hotmail! Save messages to folders on your computer, kill spam, save space in your account, maintain a fast address book that works with multiple accounts, mail merge, and make routine tasks much faster!

 2)   Easy Mail Plus 2.2
Easy Mail Plus manages addresses with full database search / filters, and easy graphic layout functions for great looking envelopes and labels. You can fax using the integrated fax driver, and email to the address list using mail merge.

 3)   PF-Merge 2.2.4

 4)   PostCast Server 2.6.0
PostCast Server will transform your Windows based PC computer into a mail server and deliver your e-mail messages directly from your computer.This is a perfect solution for sending newsletters, notifications and any other types of e-mail.