MailWasher - (Free)
Handling unwanted mail like spam using filters on the content and the sender of the messages is very easy to be done with MailWasher Free.
MailWasher Free is a tool to fight against spam by filtering emails. It can check any email arrived in the e-mail to detect spam messages. Besides, it can alert user with a message of notification of the arrival of the latter to allow him to view and delete spam before downloading.
It lets user configure its settings to suit his needs to consider a message as spam. Thus, it may perform a filter, creating a black list, define a certain message type, etc. MailWasher Free is a free anti-spam software for POP3 email accounts.