deconya wrote:
Hi list
Im looking diferent options to configure postfix main.cf
<http://main.cf> and I see the reject_unknown_client. I don't know if
it's recomended because my postfix server is used for external clients
and more uses connections with dynamic IP. If I put this, where goes,
in smtp_recipient_restrictions or smtp_client_restrictions?
Thanks
{press the [plain text] button when posting from gmail}
reject_unknown_client (with postfix < 2.3, named
reject_unknown_client_hostname) is known to reject legit mail.
Use with caution. You can try it out with:
warn_if_reject reject_unknown_client_hostname
for a period of time to log clients what would be rejected,
without actually rejecting them.
http://www.postfix.org/postconf.5.html#reject_unknown_client_hostname
http://www.postfix.org/postconf.5.html#warn_if_reject
It can be used under any of the smtpd_*_restrictions. The
"best" place depends on your other restrictions and what you
intend to accomplish. A "typical" usage might look something
like:
smtpd_recipient_restrictions =
permit_mynetworks
permit_sasl_authenticated
reject_unauth_destination
reject_unknown_client_hostname
... other UCE rules ...
-- Noel Jones
