MSG Viewer Pro

msgviewer pro opens and searches outlook .msg .eml email files. free to try.
MailNavigator

an e-mail and news client with a powerful message search system.
FastTrack Mail

Email client program for people who get huge amounts of correspondence.
eMail Verifier

E-mail checking tool to verify your customers e-mail addresses
eMail Extractor

E-mail extracting tool for recovering addresses from mailboxes and contact files
ActiveEmail

SMTP and POP3 Windows Component for VB .NET, CSharp .NET, C++ and more
ClassifyIt

protective classification and encryption add-in for ms office
delight email

with delight email you can send mass emails and sms like newsletters.