The server’s version of Mailman (list software) is out of date and is causing the problem. The server is running v2.1.9 and needs to be running v2.1.18-1 (or later if there’s another update).
AOL, Yahoo, and several other large email providers made a change about a month ago (referred to as DMARC) that has caused significant problems with email lists. Basically the problem stems from the list email appearing to be sent from the individual. AOL (Yahoo/etc.) sees an email that claims to be sent from w3kd@aol.com, but knows that the email didn’t come from the AOL servers so it rejects it. The email list software (Mailman) sees this as a bounced email and now thinks w3kd@aol.com is a bad address and suspends it.
Within the latest Mailman control panel is an option that shows the emails as sent by the list server on behalf of the individual.
I dealt with this issue on several lists I run…
Doug
K4AC
From: arrl-odv-bounces@reflector.arrl.org [mailto:arrl-odv-bounces@reflector.arrl.org]
On Behalf Of Chris Imlay
Sent: Tuesday, June 10, 2014 12:40 PM
To: arrl-odv-request@reflector.arrl.org
Subject: [arrl-odv:22821] Re: confirm 0bd85850610534a061222e3e0ec5c088e6b6221f
Christopher D. Imlay
Booth, Freret & Imlay, LLC
14356 Cape May Road
Silver Spring, Maryland 20904-6011
(301) 384-5525 telephone
(301) 384-6384 facsimile
W3KD@ARRL.ORG
-----Original Message-----
From: arrl-odv-request <arrl-odv-request@reflector.arrl.org>
To: w3kd <w3kd@aol.com>
Sent: Tue, Jun 10, 2014 12:32 pm
Subject: confirm 0bd85850610534a061222e3e0ec5c088e6b6221f
Your membership in the mailing list arrl-odv has been disabled due to
excessive bounces The last bounce received from you was dated
10-Jun-2014. You will not get any more messages from this list until
you re-enable your membership. You will receive 3 more reminders like
this before your membership in the list is deleted.
To re-enable your membership, you can simply respond to this message
(leaving the Subject: line intact), or visit the confirmation page at
http://reflector.arrl.org/mailman/confirm/arrl-odv/0bd85850610534a061222e3e0ec5c088e6b6221f
You can also visit your membership page at
http://reflector.arrl.org/mailman/options/arrl-odv/w3kd%40aol.com
On your membership page, you can change various delivery options such
as your email address and whether you get digests or not. As a
reminder, your membership password is
xxxxxxxxxxxxxxxxxxxxx
If you have any questions or problems, you can contact the list owner
at
arrl-odv-owner@reflector.arrl.org