email issues

[sgsgsgsg]

cm9nec rejected your message to the following email addresses:

email address
There's a problem with the recipient's mailbox. Please try resending the message. If the problem continues, please contact your email admin.

cm9nec gave this error:
zCSqrcs6z2JF6zCSqrOv8s Content rejected (TT992)

I have received emails from this company for years and they can no longer contact me so had to give them a gmail address. Please advise on above message?

[Ady-TalkTalk]

Hi jncape, while I make the preliminary checks please start a new topic then we can more easily track this for you. 

Ady

[jncape]

Ii thought this was fixed, but I just had another report of blocked email from the same sender. Error message 

Error:	550 5.1.1 HiWYsXtQ6cjq9 Recipient Undeliverable (TT512)
Message rejected by:	cm9nec

Please can you fix.

Domain of sender is churchofscotland.org.uk

[Ady-TalkTalk]

ok thanks I'll raise a new incident for you.

Ady

[sgsgsgsg]

Yes it is

[Ady-TalkTalk]

And its still happening this morning I take it? 

Ady

[sgsgsgsg]

@taylorsestates.co.uk is one of them

[Ady-TalkTalk]

The domain is talktalk.net, gmail.com etc basically what comes after the @ symbol in the email address. 

Ady

[sgsgsgsg]

What the senders domain sorry im not technical

Just maybe half my emails aren't coming in Ive used your online bot and the are passing it on to another departments

[Ady-TalkTalk]

Hi SF4622, can you provide the affected sende domains please?

Ady

[SF4622]

Same happening for me.  There doesn't seem to be any way to log the fault.  Anyone have any ideas if TalkTalk are likely to fix the problem?  I appear to be randomly not getting some emails.

[Ady-TalkTalk]

Hi sgsgsgsg, what is email sender domain?

Ady