I managed to contact a bell representative and found out our MX record was not working correctly. Consider this resolved
Their provider will not get back to them.
This is what the customer receives from their mail provider, I see nothing in my logs. I am in Canada so everything is normally in french and...
Starting about a month ago, we can't received emails from Bell ie sympatico or bellaliant.com. My one customer is receiving the following message....
Separate names with a comma.