jeff donovan wrote:
On Feb 19, 2009, at 10:39 AM, Noel Jones wrote:
You can use the ips.backscatterer.org to reject bounces (*NOT* all
mail) from known backscatter sources. Do this in
smtpd_data_restrictions for compatibility with sender address
verification.
# main.cf
smtpd_data_restrictions =
check_sender_access hash:/etc/postfix/backscatterer
# backscatterer
<> reject_rbl_client ips.backscatterer.org
so thats all I need to add in the hash file ?
<> reject_rbl_client ips.backscatterer.org
Yes, use this exactly:
<> reject_rbl_client ips.backscatterer.org
note: "<>" is a special lookup key used by postfix to match
the null sender address used in bounces. Controlled by
http://www.postfix.org/postconf.5.html#smtpd_null_access_lookup_key
but don't change the default.
If you want to also use bl.spamcannibal.org as some others
have suggested, the line would look like (all one line, beware
wrapping):
<> reject_rbl_client ips.backscatterer.org reject_rbl_client
bl.spamcannibal.org
-- Noel Jones
