[email protected] is down

Hi guys,

Today, I tried to send an email to [email protected] to ask for a review about my WordPress Popular Posts plugin as suggested here. However, GMail complained and said:

Delivery to the following recipient failed permanently:

[email protected]

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in local recipient table (state 14).

Any ideas?