Hi Rikard,

thanks for offering support.

Today I checked the settings, and – everything works fine again!
I don´t know what happened. It took me three days for troubleshooting!

I thought, the server IP at may GoDaddy´s shared hosting was blacklisted at Akamai.
This is why I wanted to buy a dadicated IP yesterday. Glad, I didn´t! :)

Cheers,
Aranwell