> On Sep 22, 2019, at 12:23 AM, John Dale <j...@growingbusinesssolutions.com>
> wrote:
>
> I'm not seeing anything in the logs that I can make sense of:
>
> Sep 22 04:12:50 mx postfix/smtpd[30354]: connect from
> unknown[the.ip.address.ofmynetwork]
> Sep 22 04:12:51 mx postfix/smtpd[30354]: disconnect from
> unknown[the.ip.address.ofmynetwork] ehlo=2 starttls=1 quit=1 commands=4
The client connects, establishes a TLS connection, and then sends "QUIT"
without any
further interaction.
Most likely because it sees no SASL support announced. Perhaps it is connecting
to port 25 and not 587. You should consider (if not the case already) adding:
-o syslog_name=postfix/submission
to the the submission entry in master.cf, so you can see whether the client is
connecting to the right port. [Sadly, the above is likely a bit advanced for
most five-year-olds, but I hope it will nonetheless help you make progress]
--
Viktor.
