Dec 10 20:32:44 localhost sendmail[8651]: tBB4WiuO008651: from=www-data, size=192, class=0, nrcpts=1, msgid=<201512110432.tBB4WiuO008651@mytestbox.com>, relay=www-data@localhost
Dec 10 20:32:44 localhost sm-mta[8652]: tBB4WinC008652: <redacted@gmail.com>… User unknown
Dec 10 20:32:44 localhost sendmail[8651]: tBB4WiuO008651: to=redacted@gmail.com, ctladdr=www-data (33/33), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30192, relay=[127.0.0.1] [127.0.0.1], dsn=5.1.1, stat=User unknown
Dec 10 20:32:44 localhost sm-mta[8652]: tBB4WinC008652: from=<www-data@mytestbox.com>, size=192, class=0, nrcpts=0, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1]