> On Apr 22, 2018, at 11:29 PM, David Mehler <dave.meh...@gmail.com> wrote: > > Thanks for your reply. My postconf -nf and postconf -Mf are below as > is the relevant log portions. I'm suspecting that my various smtpd* > restrictions are wrong.
Start with the default upstream master.cf file template for submission: https://github.com/vdukhovni/postfix/blob/master/postfix/conf/master.cf#L17 AVOID complex restrict definitions in master.cf, use the indirect approach ($mua_client_restrictions, ...) from the stock master.cf file, with the actual definitions in main.cf. Only the shortest/simplest overrides that will never change should be explicitly defined in master.cf in. For example, and likely the setting you're missing: -o smtpd_relay_restrictions=permit_sasl_authenticated,reject -- Viktor.
