I setup my server and sent out to a seed list to test. 2 emails to fastmail, went through. 2 emails to gmail got deferred and never arrived, but i dont see the emails anywhere in logging. I would like to see the gmail response to my mails, but i cant find the response anywhere. How should my logging be setup? or where do i check for deferred emails?
You need a logging tool for that
Usually something like Email Specter or Tatami Monitor
got email specter working, thanks!
If you have setup logging based on the documentation, KumoMTA should be logging everything out of the box. Logs are compressed in /var/log/kumomta/