Chilkat WebMail ASP Email Component 

A powerful POP3 / SMTP email client specifically designed to be used in ASP Web applications. Send mail (SMTP) , read mail (POP3), attachments, HTML, S/MIME, XML import / export, charset conversion, distribution lists, mail-merge, filtering, more...
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Chilkat S/MIME Encryption ActiveX Component 

S/MIME ActiveX component providing the ability to S/MIME encrypt or digitally sign files or data. Also decrypt and validate / authenticate S/MIME messages, data, or files. Also provides general MIME message building and decomposition capability.
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Spam Filter for Outlook 

Spam Filter utilizes the latest technology which learns from spammers messages and continually adjusts itself to protect your mailbox. Using proactive rather than reactive methods for eliminating spams, it can block over 99% of spam.(SFSBCB)
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Attach! 

Ever forgotten to attach a file? Attach! prevents it from happening again. Add-On for Microsoft Outlook.
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BrowserExpress 

BrowserExpress is a Web-based E-mail client with an Address Book. In less than 10 minutes with only three files, BrowserExpress gives all your users web based e-mail from any web browser anywhere. Implements POP3, SMTP, LDAP, and MIME.
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Nelson Email Organizer - NEO 

Put an end to 'email overload' with Nelson Email Organizer - NEO: Microsoft Outlook plug-in. Spot important emails in the daily flood. NEO automatically categorizes email messages from your correspondents separately from Bulk Mail, Ezines and Lists.
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