What are some alternatives?
When comparing POPFile and Spamihilator, you can also consider the following products
Mailwasher - Over 8 million people use MailWasher as their spam filter
Spam Reader - Spam Reader is a free anti-spam add-on for Microsoft Outlook.
Spamfence.net - Professional e-mail security free for private use: With Spamfence.
SpamSieve - Save time by adding powerful spam filtering to the e-mail client on your Mac.
SpamBayes - The SpamBayes project is working on developing a statistical (commonly, although a little...
Altospam - Antispam and antivirus software on Cloud