 Also need to set relay_host
This fixed my internal mail delivery problem, but then I noticed deliver of external mail wasn't quite working right (it looks like with this DNS setting, postfix looks up A records, not MX records).
I picked up the tip from this thread about setting the relay_host parameter (through the global settings, MTA tab in the UI).
I set it to my ISP's SMTP server and both internal and external delivery are now working. |