TopMail 

TopMail is an email client that lets you send anonymous emails from any email address to any email address.
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ActiveXperts Network Monitor 

ActiveXperts Network Monitor is the leading solution for monitoring all aspects of your LAN and WAN servers, workstations and devices. ActiveXperts Network Monitor supports Windows platforms, UNIX platforms, Linux platforms, and Novell platforms.
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! Chilkat SMTP / POP3 Components 

SMTP / POP3 ActiveX Email Component with S/MIME for signed and encrypted mail, attachments, HTML mail, Auto-Zip and Unzip attachments, XML import and export, SMTP authorization, Outlook integration, distribution lists, internationalized, mail-merge..
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ActiveEmail SMTP E-mail Toolkit 

ActiveEmail provides an easy-to-use programming interface to SMTP e-mail and NNTP news communications; Use it to send messages automatically, or in batches, from applications, web servers, or from the command-line.
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Advanced Direct Remailer 

Powerful remailer which sends your message straight out to the recipient's mail server. Multi-threaded direct delivery, internal SMTP server, mailing lists, databases, plugins, open API, ActiveX/COM interfaces, Socks5, more.
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SMTP Spotter 

With the problems of SPAM, most ISPs now block SMTP relay, that is, the ability to send email from anywhere back through your server to wherever you want. SMTP Spotter solves that by finding a local valid SMTP server that will allow you to send mail
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