MailBox Sentry

Smart antispam. It can detect and always get replays, true delivery errors, and messages from visited sites. It has two modes. With this tool you can remotely look through your mail accounts and delete messages directly on a server without downloading them. And you may use smart challenge/response system (only one challenge for each sender, list detection and etc.) It has white and black lists, and rules.

Up to 10 mailboxes. Important Changes Release 2.7.2 fixed an error that didn't allow resuming sending challenges process without restart the program upon termination of the Internet connection. Changed challenge template.

Requirements:

Windows 95/98/Me/NT/2000/XP/2003 Server

Limitations:

1-mailbox trial