Comment 4 for bug 1950173

Oh, I lied, it's the envelope From too:

| [hloeung@ackee log]$ grep ABCCFE1F0C /var/log/mail.log
| Mar 21 22:13:46 ackee postfix/cleanup[3814]: ABCCFE1F0C: message-id=<email address hidden>
| Mar 21 22:13:46 ackee postfix/local[3812]: A2C86E0279: to=<root@localhost>, relay=local, delay=0.06, delays=0.03/0.01/0/0.03, dsn=2.0.0, status=sent (forwarded as ABCCFE1F0C)
| Mar 21 22:13:46 ackee postfix/qmgr[21933]: ABCCFE1F0C: from=<root@localhost>, size=1715, nrcpt=1 (queue active)
| Mar 21 22:13:46 ackee postfix/smtp[3691]: ABCCFE1F0C: to=<email address hidden>, orig_to=<root@localhost>, relay=mx.canonical.com[91.189.95.10]:25, delay=0.2, delays=0.02/0/0.06/0.12, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as C205F1A287B)
| Mar 21 22:13:46 ackee postfix/qmgr[21933]: ABCCFE1F0C: removed