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Blocks spam without blocking any legitimate messages
...SMC uses a greylisting like technique to stop the junk-mail and a set of dynamic auto "whitelists" for unknown, but legitimate senders. In purpose of anti-virus protection the program can use very popular Clam AntiVirus engine as a back end.
A generic filter "front end" that does the following: reads standard input and sends it through a socket to a specified host and port number; receives data back from the socket and writes it to standard output.
Stop Spam - Fight back! Protect your own email address ard/or generate lists of fake email adresses for easy distribution on websites, weblogs or in newsgroups. This way we will pollute the spammers email-databases with a lot of trash...
Spam blocking SMTP mail server in perl. Filters are added while running. Recipients decide how to block, spam rejects "in the envelope" back where it's from, not forged return address. Less load on servers + networks as body+attatchments are not received