AOL is rejecting TalkTalk & Onetel emails

[MikeSTech]

For the past three or four weeks emails from TalkTalk & Onetel senders have not been reliably reaching my AOL email.

It looks to me as if TalkTalk's sender reputation with AOL (and thus probably with Yahoo also) is very low and has been for some time.

Please can you help? What steps is TalkTalk doing to communicate with AOL/Yahoo to restore its sender reputation with them?

I have been able to test this by sending emails to myself at AOL from TalkTalk and Onetel with the following results:

(1) Test sending from my TalkTalk address to AOL produces (in my Outlook PC desktop client) an Undeliverable failure message from System Administrator "550 5.7.1 Reject for policy reason", but there is no failure notification in TalkTalk webmail.

(2) Test sending from my Onetel address either:

(a) doesn't reach my AOL inbox and there's no failure message, or

(b) doesn't reach my AOL inbox and produces a Undelivered Mail Returned to Sender failure message from <mailer-daemon@mx-out.tt.xion.oxcs.net> saying:
"This is the mail system at host mx-out.tt.xion.oxcs.net.
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
<xxxx@compuserve.com>: host mx-aol.mail.gm0.yahoodns.net[98.136.96.92]
said: 421 4.7.0 [TSS04] Messages from 153.92.124.240 temporarily deferred
due to unexpected volume or user complaints - 4.16.55.1; see
https://postmaster.yahooinc.com/error-codes (in reply to MAIL FROM command)", or

(c) goes to my AOL spam folder.

I look forward to hearing soonest and I have put the various email addresses involved in my Private Notes in my Community account's Personal Information area, in the hope that this is what you need to progress.

Thanks and regards.

[Ady-TalkTalk]

I've raised it to incidents and chased it a few times. My managers are aware of the issues that are affecting customers posting in the email board. 

Ady

[MikeSTech]

OK Ady, thanks for confirming you have not heard anything yet from the incident team.

This seems to be taking a long time t have not heard anything at all, so what are the next steps to finding out what is going on with the investigation and hopefully, with implementing a solution (either by TalkTalk or in collaboration with AOL/Yahoo).

Thanks for your continued help.

[Ady-TalkTalk]

No worries, I've had nothing back from the team managing the incident. This occasionally happens when root cause hasn't been identified or when it would put customers at risk if we revealed the cause. 

Ady

[MikeSTech]

Hi Ady,

Sorry,  of course I should have said I have NOT heard any more - typo, my apologies for confusion!

[MikeSTech]

Hi Ady,

Please could you update me with progress on investigating this incident/issue?

Unless I have missed something, I have heard any more since last Monday a week ago.

Thanks and I look forward to hearing.

[Ady-TalkTalk]

Hi MikeSTech, we've opened an incident for this issue. The incident team are investigating the cause of the problem. 

Ady