> > > This is how I block those pesky spoof mail spams; > > EDIT main.cf > smtpd_recipient_restrictions = > permit_mynetworks > permit_sasl_authenticated > reject_unauth_destination > .... > check_sender_access hash:/etc/postfix/spoofprotection > > > CREATE /etc/postfix/spoofprotection > #spoof protection > domain1.com REJECT we dont mail ourselves > domain2.com REJECT we dont mail ourselves > > BUILD MAP TO IT > postmap /etc/postfix/spoofprotection > > RELOAD > postfix reload > > Caveats; > Breaks forwarding (where this is relevant) > Other caveats may exist too and someone else may point out a better way > or other issues. This has worked for me and I am very happy with it. >
Thanks Clunk, This looks like the way to go, both Brian and yourselves concur.. Just about to test this, but wanted to confirm your 'breaks forwarding' caveat, I do have some transports configured, and internal filters (amavis and procmail) but it sounds like these should be ok, can you elaborate a little? (the mail serve is stupid busy at around 15000 mails a day - thats delivered mail!! So want to be sure.. 1 min of problems means a lot of mail to find/verify :) Thanks Again. Nick
