On 11/28/2016 8:14 PM, Michael Munger wrote: ... > we simply changed the action > from "OK" to "FILTER relay:192.168.10.81". This means that inbound > mail, once it is discovered to be on a whitelist, is immediately > relayed to our Exchange server.
No, the mail is not immediately relayed. It goes through the rest of the configured restrictions, is queued, and is then relayed to the next-hop specified by your FILTER statement. Of particular interest is that FILTER -- similar to DUNNO -- does not skip further checking such as rbl lookups or hostname restrictions. To both set the next-hop AND skip further postfix restriction processing, you need two check_sender_access tables; the first to return FILTER and the second to return OK to skip further checks. -- Noel Jones
