Solved Fixed!
The reason it didn't work was the instruction to put the line "check_policy_service inet:127.0.0.1:60000" before the permit line.
Although true, it seems that the "check_policy_service inet:127.0.0.1:60000" line also needs to precede all of the lines that begin and end with "%%", e.g. "contains VAR:zimbraMtaRestriction reject_unknown_sender_domain%%. |