Upstream: https://secure.phabricator.com/T6799
At the bottom of the "Description" box in "Create New Task", Phabricator says
You can also create tasks by sending an email to: task@phabricator.wikimedia.org
I sent email from mah@nichework.com (which I've listed as my primary address here) and my mail relay handed it off to polonium.wikimedia.org (the SMTP origin for phabricator email):
Nov 4 10:49:07 nospam postfix/smtpd[32316]: 4AE3F5E3F9: client=localhost[127.0.0.1] Nov 4 10:49:07 nospam postfix/cleanup[32002]: 4AE3F5E3F9: message-id=<87egtjarv8.fsf_-_@flynn.nichework.com> Nov 4 10:49:07 nospam postfix/qmgr[19571]: 4AE3F5E3F9: from=<mah@nichework.com>, size=2931, nrcpt=1 (queue active) Nov 4 10:49:10 nospam postfix/smtp[32090]: 4AE3F5E3F9: to=<task@phabricator.wikimedia.org>, relay=polonium.wikimedia.org[208.80.154.90]:25, delay=3.1, delays=0.04/0/0.34/2.7, dsn=2.0.0, status=sent (250 OK id=1XlgLz-00055v-Oa Nov 4 10:49:10 nospam postfix/qmgr[19571]: 4AE3F5E3F9: removed
I haven't received any response, nor has the web UI shown any update for 45 minutes.