553 sorry, that address is not in my list of allowed recipients email problem

if you’re regularly getting emails bounced back to you with the error ‘553 sorry, that address is not in my list of allowed recipients’ this might help.

In our experience, the problem is usually down to a BT issue not allowing emails to be delivered.

If you’re using a BT internet connection and Outlook to send your mail, try this (click on the image for larger version):

Fix the 'address not on my list of allowed recipients' problem using Outlook