btconnect e-mail

[DipStik]

Hi All

My Outlook btconnect.com e-mail has suddenly stopped working and it now tells me that the e-mail address does not exist. When I try to reinstate it with a new password I get a 403 error or Fix NDR error "550 5.1.0" in Exchange Online.

I am not sure if this is a BT issue or a Microsoft 365 authentication problem. 

Has anybody got any ideas I can try only it's caused considerble inconvenience.

Many thanks

John

[licquorice · Accepted solution]

This is the BT residential forum, you need to post on the business forum.

[DipStik]

Thanks for the information.