Account: gsiler (gsiler.heliohost.us), hosted on Tommy.
Over an hour ago, I created an email address. (Kicking the tires in case I want to change my email host.) I sent a test email, and viewed it in the web client. Then I attempted to add the account to my Mac Mail client.
While fiddling with my client, everything I was doing stopped responding (Plesk, web mail, and my website). Now I am getting connection timeouts for both gsiler.heliohost.us and tommy2.heliohost.org:8443
Any insight on your end?