Cactus Spam Filter is a free spam blocker. It protects your inbox by learning to detect spam as it's being used. This spam stopper integrates with all e-mail clients that use POP3 such as MS Outlook, MS Outlook Express, Netscape, Opera and Mozilla.
SpamSeparator is a tool for creating spam filters to sort your emails on the server. You do not need to download each spam message or virus. The entire job is done on the server. You receive a report on all delivered and undelivered (spam) messages.
Email Sentinel Pro easily blocks malicious email attachments, scripts, forms and images used by spammers to validate email accounts. It can password protect incoming files attached to emails. Works with any Windows email client.
MailCOPA, simply the best email software available. It is the most powerful out-of-the-box email software you can purchase to date. Why? Not only is MailCOPA easy to use but it is pre-configured to aggressively combat SPAM and viruses.
Mail Storage Guard is an extension for Microsoft Exchange 2000/5.5 and IIS SMTP servers, designed to protect your server from spam, prevents mail relaying, mail-bomb and NDR attacks. Work at SMTP and at storage levels.
Enables you to read and manage your e-mails with any FTP client by acting as a POP3/FTP protocol wrapper. Burrito is actually an FTP server that translates FTP commands to POP3 commands and serves your e-mail messages as individual files.
Regardless if you need targeted or untargeted emails, MailCrawl is what you should use. It detects every single email on a site, not only those in mailto tags. Duplicates and invalid emails are instantly removed.