Last night our hosting provider moved one of our SMTP servers within its data center as part of a migration which they had planned. After the migration the server could not be restarted and it was determined that the RAID array was damaged beyond repair.
We are in the process of rebuilding this server as fast as humanly possible.
Only some of our customers are affected by this hardware failure. If you are an affected customer you will not be able to send mail until we finish rebuilding the server.
We sincerely apologize for this and are doing absolutely everything we can to get it back in operation as quickly as possible.
We will post more information and status updates as they become available.