Re my query about being unable to send e-mails from Talk Talk account on ipad. Should have added that gmail, Outlook and icloud accounts are working ok.
The problem with Talk Talk account developed approx. one week ago. I have twice tried to delete the account and then added it again without success. I note on the Talk Talk Community a week ago that they are aware of an issue with tablets but intimate the problem may be with the ipad and Apple.
iPad 2, iOS 7.0.2