Quoting Feizhou <feizhou at graffiti.net>: > Barry Brimer wrote: > > Quoting Feizhou <feizhou at graffiti.net>: > > > > > >>>>name or ip of postini-allowed mail server1 OK > >>>>name or ip of postini-allowed mail server2 OK > >>>>name or ip of postini-allowed mail server3 OK > >>>>name or ip of postini-allowed mail server4 OK > >>>>/^.*/ REJECT > >> > >>whoops.. > >> > >>you want two rules for that...the first one the OK match and therefore > >>not necessarily a regex table and the second one refering to the regex > >>catchall. > > > > > > Would this have the same effect? > > > > smtpd_restriction_classes = example.com-restrictions > > > > example.com-restrictions = > > check_sender_access hash:/etc/postfix/example.com-restrictions, > > reject > > > > Contents of /etc/postfix/example.com-restrictions: > > > > name or ip of postini-allowed mail server1 OK > > name or ip of postini-allowed mail server2 OK > > name or ip of postini-allowed mail server3 OK > > name or ip of postini-allowed mail server4 OK > > > > Looks good. Feizhou, Thanks so much for your help, I was able to implement this restriction very easily with your kind assistance. I decided to use a regexp file to do the reject, because that allows me to send a custom error message. Simply placing the "reject" at the end of the list throws a generic message that does not exactly describe why the message is being rejected. Once again - Many Thanks!!! Barry