So it probably has nothing to do with the plugin ??
I have a idea about what happens. When look in the control panel, it looks like my .be is an alias for the .org domain. The server sees a mail for .be and sends it to the .org mail adresses. I don’t think it checks any dns servers as it alread knows it is local.
When I change the “send to” to another mail adres that has nothing to do with the .be or .org, the mail arrives at the correct adress.
Or is it all b*ll i’m talking ??