details-
postfix 2.1.4
debian testing

i just set up amavisd-new with clamav, and as i was looking over a header of a test that i sent another email it says-
Received: from xxx.xxx (xxx.xxx [65.103.xx.xxx] (may be forged))

so i sent another to a different account and seen-
Received: from xxx.xxx (unknown [65.103.xx.xxx])

how do i get rid of the (may be forged) and/or the unknown? i would like it so that people can't forge from my mail server.

i don't know if that's enough info, if not please reply telling me what i need to tell you.

do i have to set up a mx address with my domain auth telling it the name of my mail server and the ip address of it? or set up a aname, or cname? from what i've read, i don't think the cname is it, but i could be wrong.

i did a whois on my domain name and it's coming up as the gateway address of my static ips, instead of the server ip. that's why i'm thinking it might be an mx issue.

oh, one other thing. i've made sure that no one can relay off of me through njabl.org. so i know that's ok.

people should use it when they first set up their mail servers just to make sure.

telnet rt.njabl.org 2500

let it run and it'll tell you if you are or not.

to finish off this thread i've got it going so that i don't have the 'may be forged' in the headers anymore.

i had to set up an aname reference with my domain registrant.