Reindl, Thank you very much for the help.
Is there a specific line in master.cf that I should amend? Or can I just drop it in on the bottom? -Jon On Jan 18, 2012, at 11:41 AM, Reindl Harald wrote: > > > Am 18.01.2012 17:36, schrieb Jon August: >> Hi, >> >> We have a postfix machine setup as described here: >> http://www.howtoforge.com/virtual-users-and-domains-with-postfix-courier-mysql-and-squirrelmail-ubuntu-11.10 >> >> and we would like to use a third party to do our spam filtering. So, we'd >> like to continue using the machine for authenticated outbound mail, but we >> want to limit the inbound mail to the third party mail server. How do we >> configure postfix to do this? >> >> Outbound: >> -------------- >> ANY IP (authenticated) -> Postfix -> The World! (OK) >> >> Inbound: >> ------------ >> A.B.C.D -> Postfix (OK) >> Anything else -> Postfix (DENIED) >> >> Thank you for your help. > > * add the ip to "mynetworks" > * add > "smtpd_sasl_auth_enable=yes,permit_sasl_authenticated,permit_mynetworks,reject" > in master.cf >