We are conducting some maintenance on the primary mail server this evening that will cause users to be unable to access mail for a period of time.
The maintenance will happen between 8pm and 11pm PDT, and is expected to take around an hour, but may take somewhat longer if difficulties are encountered. We do not expect the server will be down longer than 3 hours.
We do not expect any mail to be lost, mail sent during this time period will be queued for later delivery. However, users will be unable to access mail and unable to send mail throughout most of this time.
Please contact us if you have any questions or concerns. It will be possible to open a support ticket during the outage, if needed.
UPDATE 2013-03-11 20:30: The server is now up and running, and all user-facing services have been restored. All backend functionality will be restored shortly.
UPDATE 2013-03-11 20:42: All services are up and running and all back logged mail has been delivered. Thanks for your patience.