You've Got Mail 

Shows Animation and Plays Sound when e-mail arrives. Tells you when it is time to start your e-mail client. You don't have to keep your default e-mail program running all the time. Check as many e-mail accounts as you like.
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bxAutoZip for Outlook 

bxAutoZip is an Add-In for Microsoft Outlook which automatically and independently compresses any files attached to an e-mail message. Thanks to the seamless integration into Outlook, not one single extra step is required to zip the attachments.
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BCArchive 

With BCArchive software you may encrypt and compress a group of files/folders to an encrypted archive (i.e. single file). You may store all you confidential files in such archive and/or e-mail it to your friend.
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eMail Bounce Handler 

eMail Bounce Handler is a bounce e-mail filtering and handling tool that recognizes bounce e-mails using a customizable set of rules and extracts the recipients addresses allowing you to use them again to try sending your mail or to take them off.
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CHAOS' Doors 

Comprehensive privacy tools including file/folder encryption, e-mail encryption, file/folder shredder.
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Internet Drummer! 

This program allows you to preview e-mails on multiple POP3 servers and delete unwanted messages before using e-mail client. It includes automatic spam filtering and serves as a notifier for both new e-mail arrivals and changes on specified web pages
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