What are some alternatives?
When comparing POPFile and Mailwasher, you can also consider the following products
Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.
Spam Reader - Spam Reader is a free anti-spam add-on for Microsoft Outlook.
SpamSieve - Save time by adding powerful spam filtering to the e-mail client on your Mac.
Spamfence.net - Professional e-mail security free for private use: With Spamfence.
SpamBayes - The SpamBayes project is working on developing a statistical (commonly, although a little...
SpamAssassin - Use this program to "Unspam" your mailbox(es).