On Jan 26, 2009, at 10:12 AM, Paweł Leśniak wrote:
Jim Wright pisze:
On Jan 26, 2009, at 7:41 AM, Paweł Leśniak wrote:
One of our users is getting lots of returned mails because his
email address is used as return-path by spammer(s).
I would guess that your system accepting mail from unknown
servers? Start blocking those, and you'll find that these bounces
will drop significantly. Hard to tell from your sanitized error
report...
Well, I have no idea what is missing in my previous post. Could you
please tell me what's missing?
Here's excerpt from logs:
Jan 26 13:05:42 mail postfix/policy-spf[2500]: : Policy
action=PREPEND Received-SPF: none (server.hipwah.com: No applicable
sender policy available) receiver=mail.example.com; identity=helo;
helo=SERVER.hipwah.com; client-ip=202.134.118.114
reject_unknown_hostname
SERVER.hipwah.com has no DNS A or MX record.
