Jul 23 21:19:04 picus sendmail[21205]: x6O1J489021205: from=fail2ban, size=210, class=0, nrcpts=1, msgid=<201907240119.x6O1J489021205@major-productions.com>, relay=root@localhost
Jul 23 21:19:04 picus sm-mta[21207]: x6O1J4vh021207: from=<fail2ban@major-productions.com>, size=461, class=0, nrcpts=1, msgid=<201907240119.x6O1J489021205@major-productions.com>, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1]
Jul 23 21:19:04 picus sendmail[21205]: x6O1J489021205: to=root, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30210, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (x6O1J4vh021207 Message accepted for delivery)
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021207: to=linode, ctladdr=<root@major-productions.com> (8/0), delay=00:00:00, mailer=local, pri=120461, dsn=5.1.1, stat=User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021207: to=<fail2ban@major-productions.com>, delay=00:00:00, mailer=local, pri=30680, dsn=5.1.1, stat=User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021207: to=linode, ctladdr=root (8/0), delay=00:00:00, mailer=local, pri=30680, dsn=5.1.1, stat=User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021207: x6O1J4vh021208: postmaster notify: User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021208: to=linode, ctladdr=root (8/0), delay=00:00:00, mailer=local, pri=0, dsn=5.1.1, stat=User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021208: to=linode, ctladdr=root (8/0), delay=00:00:00, mailer=local, pri=0, dsn=5.1.1, stat=User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021208: x6O1J4vi021208: return to sender: User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vi021208: to=linode, ctladdr=root (8/0), delay=00:00:00, mailer=local, pri=0, dsn=5.1.1, stat=User unknown
Jul 23 21:19:04 picus sm-mta[21208]: x6O1J4vh021208: Saved message in /var/lib/sendmail/dead.letter