> On May 15, 2018, at 5:30 PM, Benny Pedersen <m...@junc.eu> wrote: > > ort 25 should not provide auth senders > > add a transportmap to relay host and do not use port 25 in the transport map
There's no need for transport entries. Just setting "relayhost' is enough. The relayhost setting can include a port number if desired: http://www.postfix.org/postconf.5.html#relayhost -- Viktor.