I have an old email address with ntlworld. It is still active as I have an email inbox set up on my mac mini to receive them. However I can't log into the account online. Why is this? It says it doesn't recognise my username
This often evidence that the email address is in the process of being closed down. You say it is an old ntlworld address - do you have a current Virgin Media broadband account to which this particular email address is attached? VM and their legacy email addresses are supposed to close down 90 days after you cease to be a broadband customer.
_________________________________________________________ Graham I am a VM customer. There are no guarantees that my advice will work. To say thanks click the kudos thumb. If I have solved your problem please click the helpful answer button.
I still have virgin broadband - I never ended my contract. Seems strange that he account is still active - still get emails to the address locally on my computer - but can't access them online via webmail as it doesn't recognise account...
Might it also be that you haven't accessed the address in the last 90 days. VM close these addresses down and delete them after 150 days. If that isn't the case and you have been in to it wait here. Sounds like a server error that the Forum Team can investigate for you.
Superuser 2016/17 Use Kudos to say thanks Mark answer as "helpful" only when the problem is solved Please don't send me private messages unless I ask you to. I do not work for VM.
Your email address is linked to an active account and that all looks in order from here. Would you please attempt to access My Virgin Media(with your specified 3rd party email address) and let me know whether or not that is successful? Your email password will be the same and should therefore work.
Nothing to do with unused email addresses being deleted. There appears to be a system malfunction. Both of our email accounts have continuously failed authentication since about 9.30 this morning using Thunderbird. I just checked webmail, and while the bit about selecting all street signs worked (sigh!) the login didn't work there either.
 I just checked My Virgin Media and this login was rejected as well.[/edit]
VM need to get this problem fixed pronto as users are being seriously inconvenienced or worse. As it looks like a corrupt or missing user details file, surely this can be recovered from backup. They do have a backup and audit trail I hope