Can't send an email

[Tim_G]

Tried that: nothing (as expected: I haven't blocked any senders).

[MAGZEY]

I have the same problem. driving me nuts.

[MAGZEY]

Can you send me the fix or post it so that we can get it sorted please?

[Des911]

I had to contact BT who took a couple of days to fix it. Something was telling their equipment that things weren't right and they had to delete it.

[dt7blue]

Hi there

I have exactly the same problem ie I cant send emails due to the same error message. I have switched off and rebooted my router, it makes no difference. Are there any other solutions please?