Someone has been spamming via the EU server again. Most likely via compromised mail password.
That server is now blacklisted. Hopefully the provider will not unplug us like before, but if you cannot access your site, that is what happened.
Relaying has been changed from Authenticated to Closed on EU server.
We have also disabled the submission ports on this server.
If this continues, all servers will be following.
This means you will not be able to send mail using our servers, you must send via your ISP's servers.