Email down, site down, no way to contact support?

Frustration here.

My site is down.

My email ( is not recognized.

Final-Recipient: rfc822;
Original-Recipient: rfc822;
Action: failed
Status: 5.1.1
Diagnostic-Code: X-Postfix; unknown user:

There appears to be no way to contact any support except through the “panel” which I cannot get into as the email is not recognized.

What do I do?

Use the “Contact us” button at

Hmmm if it try for “tech support” it seems to say I have to use the panel, which I can’t get to.

I tried “other” and think I was able to send a message.