xTerminator

Anti-spam tool: xTerminator5 will help you block spam and most of worms before they even reach your mailbox. You'll be able to delete unwanted messages directly from the server thus saving valuable time and bandwidth. With xTerminator you can check e-mail while it's still on server, automatically filter unwanted messages, manually check messages before deletion (optionally), save bandwidth, lessen the chance of virus infection, Clean multiple accounts, create custom filters, block all but friendly messages (optional), auto-reply with pre-defined message. Built-in Challenge/Response System allows you to send people a question (like, what's my pets name?) that, if correctly answered, will provide them with a password so their messages will not be deleted again or even automaticall added to your "Friendly Content" list. xTerminator also has a built-in Word List Builder, a simple utility that will help you extract words usually used by spammers within subject line of their messages.