Split from this thread.

When sending message, I receive message "This is an automatically generated Delivery Status Notification. Delivery to the following recipients failed"

I am receiving this message on all emails I send from my hotmail account.  No other account is affected.

I am receiving the emails from all but when I reply the mail bounces.  The address must be correct as it is a reply. However to check this I have re-typed the addresses.

If I send from another address e'g' gmail there is no problem.

It started 2 days ago when I sent a message early morning. I then tried to send another message and this started happening. My personal opinion is a setting in either live mail or outlook but I cannot find where to change them.

Any help gratefully received.

Trevor