I have a postfix mail server that has been working great for some time. I started to notice some weird logs for postfix in the /var/log/mail.log. Seems like the log is a message saying that my server was detected as spam so it was blocked.
postfix/smtp: 748253FC69: email@example.com, relay=alt1.gmail-smtp-in.l.google.com[22.214.171.124]:25, delay=330322, delays=330302/12/6/2.3, dsn=4.7.0, status=deferred (host alt1.gmail-smtp-in.l.google.com[126.96.36.199]
My mailservers are not configured to send outbound mail. There should be no outgoing mail only incoming. So not sure how these logs are showing up. Seems like my server is sending random emails out?
Anyway to see what is actually sending these emails like an email address?
Seems there are many of these emails.
Any help would be appreciated.