On Fri, Nov 17, 2017 at 02:56:17PM -0800, Gao wrote: > Is there anything I can configure it to whitelist my backup mx IP?
Again, as Noel said twice upthread, it makes more sense to do the whitelisting in Postfix rather than in the policy server. Just a simple check_client_access lookup, an example of which was given already. -- http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject: