12 Jan 2013, 9:30 MT - Beginning at 8 MT, some Bronze accounts were no longer sending email.  Email Activity shows that email is being throttled.  All email is being queued and will be delivered once the problem is resolved. - Tim

12 Jan 2013, 10 MT - Issue has been resolved as of 9:45 MT.  All email is being delivered as normal on the affected accounts. - Tim