Dear Hostony Customers, the mailserver for 67.19.125.18 is currently under repair due to database corruption. Your mail accounts will start working as soon as possible. The support department is working on this problem now.

Any update on this? As of 1455 EDT, it's still down

sniperfox, please tell me the login details for that e-mail account. We fixed the problem already, though some of the accounts were not fixed. We are configuring them manually now.
The best decision is to open a trouble ticket.