UPDATE
[2011-10-25 11:00:59 | Eric Fraser]
CalMail access temporarily resumed. Backlog email is now being delivered. Exhibiting more delays at 11:55am, but now slowly responding.
Resolved as of 2011-10-25 17:14:00
http://ucbsystems.org/2011/10/28/unscheduled-outage-calmail-6/