On Tue 12 Jan 2010 07:17:44 PM CET, Callum Millard wrote
I'm sure there's a straight forward way of doing this, but after
several of hours searching, I can't find it.
The problem is spam with a faked 'From:' field. Spammers are
sending e-mails to our domain with the 'From:' field set to a valid
e-mail address from our domain. Here's an edited example:
google equal sender recipient postfwd
http://www.openspf.org/ add spf to your own domain and test it in your mta
add sender auth to local domain in mta (smtp auth)
whats left now ?
cheating a little here, dkim can do it aswell, but then mta need the
whole body :(
--
xpoint http://www.unicom.com/pw/reply-to-harmful.html
