[Mailman-Users] messages fail to @yahoo @aol @outlook

[Loren Engrav]

Greetings

I use Mailman (2.1.26) at Site5.com.

Several of the member addresses are @yahoo.com @aol.com and @outlook.com.

Messages to these address bounce and fail and / or just fail.  Messages to other addresses pass.

The latest notice(s) are summarized below.

Site5 people cannot seem to fix this.  

Any advice for me / Site5? (I am not expert at this)

Thank you

Loren Engrav

===================
his is a Mailman mailing list bounce action notice:

   List:       testwg
   Member:     engravosaurusrex at aol.com <mailto:engravosaurusrex at aol.com>
   Action:     Subscription disabled.
   Reason:     Excessive or fatal bounces.


From: MAILER-DAEMON at gateway1.unifiedlayer.com <mailto:MAILER-DAEMON at gateway1.unifiedlayer.com> (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
Date: July 27, 2019 at 9:38:57 PM PDT
To: testwg-bounces at engrav.mobi <mailto:testwg-bounces at engrav.mobi>


This is the mail system at host gateway1.unifiedlayer.com <http://gateway1.unifiedlayer.com/>.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                  The mail system

<engravosaurusrex at aol.com <mailto:engravosaurusrex at aol.com>>: delivery temporarily suspended: lost connection
   with mx-aol.mail.gm0.yahoodns.net <http://mx-aol.mail.gm0.yahoodns.net/>[98.136.101.116] while sending RCPT TO
Reporting-MTA: dns; gateway1.unifiedlayer.com <http://gateway1.unifiedlayer.com/>
X-Postfix-Queue-ID: 47C7320078818
X-Postfix-Sender: rfc822; testwg-bounces at engrav.mobi <mailto:testwg-bounces at engrav.mobi>
Arrival-Date: Sat, 27 Jul 2019 21:13:17 -0500 (CDT)

Final-Recipient: rfc822; engravosaurusrex at aol.com <mailto:engravosaurusrex at aol.com>
Original-Recipient: rfc822;engravosaurusrex at aol.com <mailto:engravosaurusrex at aol.com>
Action: failed
Status: 4.4.2
Diagnostic-Code: X-Postfix; delivery temporarily suspended: lost connection
   with mx-aol.mail.gm0.yahoodns.net <http://mx-aol.mail.gm0.yahoodns.net/>[98.136.101.116] while sending RCPT TO

From: testwg-request at engrav.mobi <mailto:testwg-request at engrav.mobi>
Subject: confirm 29e587acb271cfb11cfadd8ca325f3ffa9bd2fca
Date: July 27, 2019 at 7:13:15 PM PDT
To: engravosaurusrex at aol.com <mailto:engravosaurusrex at aol.com>

Your membership in the mailing list testwg has been disabled due to
excessive bounces The last bounce received from you was dated
27-Jul-2019.

If you have any questions or problems, you can contact the list owner
at

   testwg-owner at engrav.mobi <mailto:testwg-owner at engrav.mobi>

========================
This is a Mailman mailing list bounce action notice:

   List:       testwg
   Member:     engravosaurus at yahoo.com <mailto:engravosaurus at yahoo.com>
   Action:     Subscription disabled.
   Reason:     Excessive or fatal bounces.



The triggering bounce notice is attached below.

Questions? Contact the Mailman site administrator at
mailman at engrav.mobi <mailto:mailman at engrav.mobi>.

From: MAILER-DAEMON at gateway13.unifiedlayer.com <mailto:MAILER-DAEMON at gateway13.unifiedlayer.com> (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
Date: July 27, 2019 at 10:19:15 PM PDT
To: testwg-bounces at engrav.mobi <mailto:testwg-bounces at engrav.mobi>


This is the mail system at host gateway13.unifiedlayer.com <http://gateway13.unifiedlayer.com/>.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                  The mail system

<engravosaurus at yahoo.com <mailto:engravosaurus at yahoo.com>>: delivery temporarily suspended: lost connection with
   mta5.am0.yahoodns.net <http://mta5.am0.yahoodns.net/>[98.137.159.24] while sending RCPT TO
Reporting-MTA: dns; gateway13.unifiedlayer.com <http://gateway13.unifiedlayer.com/>
X-Postfix-Queue-ID: 598BC200A4FF9
X-Postfix-Sender: rfc822; testwg-bounces at engrav.mobi <mailto:testwg-bounces at engrav.mobi>
Arrival-Date: Sat, 27 Jul 2019 21:53:54 -0500 (CDT)

Final-Recipient: rfc822; engravosaurus at yahoo.com <mailto:engravosaurus at yahoo.com>
Original-Recipient: rfc822;engravosaurus at yahoo.com <mailto:engravosaurus at yahoo.com>
Action: failed
Status: 4.4.2
Diagnostic-Code: X-Postfix; delivery temporarily suspended: lost connection
   with mta5.am0.yahoodns.net <http://mta5.am0.yahoodns.net/>[98.137.159.24] while sending RCPT TO

From: Loren Engrav <engrav at mac.com <mailto:engrav at mac.com>>
Subject: [testwg] 7:53 [#NAC-143-22422]: Email bounceback [uscentral427.accountservergroup.com <http://uscentral427.accountservergroup.com/>]
Date: July 27, 2019 at 7:53:36 PM PDT
To: testwg at engrav.mobi <mailto:testwg at engrav.mobi>