On 12/20/10 3:49 PM, Frank Bonnet wrote:
Hello
I receive periodically some spams that pretend to be from my domain.
If this is in the From: header, there's not much you can do about that.
The envelope sender you can trivially protect.
After you have allowed submission, and have passed $mynetworks, use a
check_sender_access map to REJECT anything in your domain.
Looking in emaila headers I can see where the email come from
Received: from 174.subnet222-124-154.static.astinet.telkom.net.id
(unknown [222.124.154.172])
Of course the header has been rewrited but is there a possibility with
postfix
to refuse that kind of emails that comes from an explicitly outer IP
address
but pretend to be in my domain ?
Thanks
--
J.
