[Mailman-Users] Patch for use of Postfix VERP support

[Fil]

Another difference to mention in the README is that the postfix logs
will show the normal (unVERPed) addresses instead of the VERPed
addresses:

Jan  3 16:28:09 alan postfix/qmgr[17364]: 4754D3B05C7:
    from=<test-bounces at rezo.net>, size=3082, nrcpt=4 (queue active)
Jan  3 16:28:10 alan postfix/smtp[27894]: 4754D3B05C7: to=<recifs at gmail.com>,
    orig_to=<fil at rezo.net>, relay=gmail-smtp-in.l.google.com[216.239.59.27]:25,
    delay=0.72, delays=0.11/0.02/0.14/0.45, dsn=2.0.0, status=sent (250 2.0.0 OK
    1230996360 t2si31343988gve.31)

-- Fil