email address being blocked from Virginmedia sender

[DFCH1]

A friend is trying to send me emails and she keeps getting a "failure to send" - started today. She is with Virginmedia and my email is tiscali. Even when sending a blank email with just a subject, this is part of the message she receives:

host mx.tiscali.co.uk [62.24.139.42]

    SMTP error from remote mail server after end of data:

    552 5.2.0 Giz4r2jvHvxrrGiz4rXulr Content rejected (TT992

Is it a Virginmedia problem or tiscali?

[Ady-TalkTalk]

There's no NTL email address in your private notes. 

Ady

[JennyB123]

I have added an NTL address to the notes in my email personal data - this email address stopped working after Boxing Day and still does not work at 08:30 GMT today.

[JennyB123]

Ady, I dont know what you are asking for - but in any case the problem is at the gateway not my mailbox given the TT error.

[Ady-TalkTalk]

Add the sender addresses to your profile in the private notes section and I'll run checks on those too. 

Ady

[JennyB123]

Thank you Ady - but what will be done to fix it, as we tested an NTL address an hour ago with the same result - blocked at the gateway with the same error.

[Ady-TalkTalk]

Hi jennyB123, I've run a 7 day check for emails blocked coming into the email address you're registered with on the community.

Ady

[Gondola]

Good to know that you haven't inadvertently selected Mark as spam for any incoming mail from Virgin Media domains but someone else may have.

Waiting to see what TalkTalk say. Ady-TalkTalk was here earlier but was signed out just after lunchtime so I guess that was just a half day stint on what is a holiday. Should be back to normal working hours for TalkTalk Support from tomorrow onwards subject to any leave etc.

[JennyB123]

Thank you. I can confirm that I have not marked any incoming mail as unwanted. It seems to be a periodic issue with NTL/Virgin to TalkTalk.

[Gondola]

There's no blacklisting by the normal agencies so I've asked TalkTalk Support to check for spam blocking on the basis that outgoing spam has been detected or TalkTalk Mail users have marked emails as unwanted. 

We'll see what TalkTalk find out.

[JennyB123]

We have tried sending completely blank emails with no content, one letter content, one sentence content and the same issue. There are no problems receiving the other way. So it does look like a talktalk filter issue.

[JennyB123]

It's NTL and we have tried from a few NTL addresses and the same thing happens.

[Gondola]

Ji Jenny

There are a couple of reports on VirginMedia Community of TalkTalk rejecting inbound mail with a TT992 spam protection rejection.

I cannot see any obvious root cause for this other than spam being detected. Which VirginMedia email domain is used by your contact? Is it virginmedia.com or one of the legacy domains like ntlworld.com etc.?

[JennyB123]

This is happening to lots of us at the moment. The fault seems to be TalkTalk blocking all Virgin Media emails and content. Talk Talk need to fix it.

[DFCH1]

Thank you Gondola. Will investigate and report back.

[Gondola]

The TT992 bounceback is a spam or malicious content detection. This means that either the Virgin Media mail server IP address has been detected as sending spam or the worst case scenario for your friend is that their public IP address or email address has been flagged as sending spam or malicious content.

Take the worst case approach and advise your friend to scan their email devices for viruses, trojans or other password capturing malware. Then if all clear to upgrade their email password to deny any potential spammer the use of their Virgin Media mailbox.