Update: It's definitely my ISP blocking port 25. I told Exim to listen on a non-standard port, and then checked from a remote computer to that port, and it went through just fine. So, I guess I have ...
I have a very strange problem after moving my netwave.be domain from WebHost4Life to Arvixe. I configured several email adresses, like email@example.com and firstname.lastname@example.org. For POP3 I can use ...