email driving me Mad.............

[Purgatory]

As most talktalk users will confirm - their erractic email performance is less than good (That's putting it politely!)

After a brief period of good behaviour - I have now run into this problem - see below to read message that gets thrown up when using Outlook 2007...............

Mail server mail.talktalk.net responded: unable to lock mailbox, 11

Your help in solving this problem would be appreciated. As I have experianced problems with Outlook express (old computer) and also Thunderbird together with the above, I can only assume that again this is a talktalk 'balls up' OR do I do them an injustice on this occasion.
Cheers

 

[Purgatory]

Surprised no one has responded - there is a lot of expertise out there amongst forum members.

If I try to send via Thunderbird - this is the message I receive......
Sending of password for user [email protected] did not succeed. Mail server mail.talktalk.net responded: unable to lock mailbox, 11

As a guess, I either have a modem router fault OR the talktalk mail servers are AGAIN playing up.
Your thoughts would be appreciated

Cheers

 

[Purgatory]

Tried alternative modem/router last night.... no change.

EDIT 29-07-15.................

In the end it does seem that the problem was with the TT mail servers