Thanks everyone for your help. I phoned tpg and got it sorted, although still doesn't work from my iPad.  ... View more

  Has your email been working for some time and has suddenly stopped working? Yes   What mail client do you use on your computer?.... ?? TPG Post Office On the iPad, is it Apple Mail?  Yes Does the error message show up as you type in the address or only when you press Send? Only when press send When using Post Office, does the email move to the Sent folder? No goes to Draft does the error message appear over the email you are trying to send? Yes No to all other qns.   Thanks ... View more

How to I access the email account please ... View more

Where do I find how to check the settings you suggest please ... View more

I use computer and iPad. ... View more

This happens on all emails that I send, using regular contacts stored in Contacts. It occurs through Mail and TPG Post Office ... View more