Though the scheduled downtime is 6:30am to 7am, we expect actual downtime to be less.
A renewed SSL certificate is being installed.
UPDATE
[2013-10-01 08:09:40 | mark kraitchman]
Outgoing smtp service resumed on gateway.eecs October 1, 2013 06:38 with a renewed SSL certificate.
Resolved as of 2013-10-01 06:38:00