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Re: [K12OSN] OT: just reduced spam by 95% with Free Software



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I've been using dns blacklists for a while, but I've never gotten SPF checking setup. How did you set that up?


My server is also setup to do spf checking.

This mail project got started because spammers where using
totalsense.com in their return addresses.  Guess they took a liking to
it.  I was getting hundreds of bounce messages to non-existent mail
addresses.  Convinced me real quick not to do a catch-all mailbox.
Implementing SPF reduced that by about 2/3 at first.  Now I don't see
any.

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