Guy wrote:
Hi Brian,
2008/9/8 Brian Evans - Postfix List <[EMAIL PROTECTED]>:
SPF running in conjunction with Postfix will only do verification.
http://www.openspf.org/Software lists the packages known to work properly.
What makes you think you have a problem?
I should have been more specific. I've had a couple of cases of
forwarded mail being rejected by servers doing SPF checks and
obviously the sender doesn't match my server since it's forwarded
mail. That's why I've been looking at SRS.
we'd like to see a concrete example: sender domain and the
"uncooperative" remote server.
That said, make sure to police your users effectively. Use antivirus and
antispam (do install spamassassin).
Read through http://www.openspf.org/ for issues on SPF. REQUIRE SASL for
users on untrusted networks.
At the moment the server already uses a few RBL's, greylisting and
clam-av. But it only accepts mail. It isn't set up to allow any
sending from users. SASL is already required for the servers used by
clients to send out mail.
how is forwarding implemented?
