POPFile vs Postgrey
A side-by-side look at POPFile and Postgrey. For an in-depth review of either product, follow the links below.
POPFile
Office & Productivity
POPFile is an open source email classifier that can automatically sort incoming email into user-defined categories. It works by learning from user feedback to build up a statistical model of the categories.
emailclassifierautomatic-sorting
Postgrey
Network & Admin
Postgrey is an SMTP proxy program that temporarily delays mail delivery to help mitigate spam. It uses greylisting to reject initial email delivery attempts, forcing email servers to retry sending messages and confirming they are not spammers.
greylistingsmtpemail-deliveryantispam
Related Comparisons
Mailwasher
SpamAssassin
Spam Reader
SPAMfighter
Spamato
Cloudmark DesktopOne