What are some alternatives?
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.
SpamAssassin - Use this program to "Unspam" your mailbox(es).
BullGuard Spamfilter - Most people find spam e-mails the biggest nuisance on the Internet.
Altospam - Antispam and antivirus software on Cloud