> The postifx log says: > > "RCPT from unknown[202.70.195.135]" > > Regardless of the results from dig, doesn't the above log entry mean > that postfix is unable to find an rdns entry for this IP and that > reject_unknown_reverse_client_hostname should be rejecting the connection? > > Terry
No. As explained previously. It says unknown because the rDNS entry (Which is present) doesn't have a forward. e.g. the reverse is set to x.y.z.host.com but there is no actual dns entry for x.y.z.host.com resolving to that IP. Hence this is a bad check to perform, since most dialup providers create the rDNS but don't always put in the forward to match... Lee
