On my domain, I used to have email adresses linked to my hoster server, now I am using Microsoft 365 to manage my emails.
On that server there are my company’s email adresses and those of another company.
Now that we are using Microsoft 365 email adresses, we still receive emails from this other company to our former emails adresses on our hoster’s server.
We submitted the issue to the hoster that told us our dns zones were correct and the issue comes from cloudflare.
I can indeed confirm the dns zones are correct as :
- I checked them
- We use the Microsoft tool to automatically configure the dns zones when we linked our domain name to Microsoft 365.
We also have this issue on another server with domains both managed by cloudflare.
Has someone an idea of where this could comes from ?