Ruben Safir: > On Sun, Jan 23, 2022 at 12:37:00AM -0600, Rob McGee wrote: > > On 2022-01-22 21:53, Ruben Safir wrote: > > >Sorry not main, in master > > > > > >On Sat, Jan 22, 2022 at 10:51:31PM -0500, Ruben Safir wrote: > > >>Is this an error? > > >> > > >>smtp inet n - n - - smtpd > > > > "smtp" is the port name. It's 25. > > "getent services smtp" > > > > So what is the smtpd on the above line? Am I telling port 25 to obey > the rules for port 587?
This is the 'smtp' service on TCP port 25 for server-to-server communication. It runs a Postfix smtpd process. All its parameter settings are taken from main.cf. This is separate from the 'submission' service on TCP port 578. This also runs a Postfix smtpd process, but with different parameter settings, specified in master.cf, for client-to-server communication. > > >>submission inet n - n - - smtpd > > >> -o syslog_name=postfix/submission > > >> -o smtpd_tls_security_level=encrypt > > >> -o smtpd_sasl_auth_enable=yes > > >> -o smtpd_sasl_auth_enable=yes > > >> -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject Wietse