If I check my DNS settings on this site, I find these settings, which are correct in my opinion:
Your name servers returned 5 MX records:
1 aspmx.l.google.com. TTL=86400 5 alt1.aspmx.l.google.com. TTL=86400 5 alt2.aspmx.l.google.com. TTL=86400 10 alt3.aspmx.l.google.com. TTL=86400 10 alt4.aspmx.l.google.com. TTL=86400
Every test is green, nothing seems wrong. But if I test my dns on another ssl mailserver checksite, there is one server listed as a mailserver, which is the one which will be resolved by my domain. What is going wrong? The mails are still received from my frontend mailserver. But as the first test shows, the mails should go to google?!
I changed everything on this wednesday at 3 in the morning...