On Fri, Jan 18, 2013 at 09:12:31PM +0100, Adri van Loopik wrote:
> I had first also to put smtp_host_lookup on 'native, dns' (I did the
> same for lmtp_host_lookup, not sure that was needed).
The real issue was that you failed to use the correct relayhost
syntax:
relayhost = [relay.example.com]
not
relayhost = example.com
typically the first form is for relay servers ISPs give their
customers as submission servers, ... while the second is for relays
that are domains with MX RRsets. Your ISP probably had MX records
for the relayhost that pointed elsewhere.
--
Viktor.
