|Title||Start Date & Time||End Date & Time|
|Service Maintenance Scheduled: Microsoft Exchange||Monday, December 29, 2014 - 6:00am||Monday, December 29, 2014 - 6:30am|
|Service Maintenance Scheduled: Desire2Learn (D2L)||Monday, December 29, 2014 - 9:00am||Monday, December 29, 2014 - 11:00am|
|Service Maintenance Scheduled: Northstar||Tuesday, December 30, 2014 - 6:00am||Tuesday, December 30, 2014 - 7:00am|
|Service Maintenance Scheduled: Microsoft Exchange||Tuesday, December 30, 2014 - 6:00am||Tuesday, December 30, 2014 - 10:00am|
|Service Maintenance Scheduled: Website Security Certificates||Wednesday, December 17, 2014 - 10:00am||Wednesday, December 31, 2014 - 5:00am|
|Service Maintenance Scheduled: OIT Software Downloads (cuservices.colorado.edu)||Monday, January 5, 2015 - 7:00am||Monday, January 5, 2015 - 8:00am|
A network firewall issue caused a portion of the CULink mail servers to reboot and go offline. During the outage, some CULink users were unable to login to the service or send email, but incoming messages were queued and delivered once the servers came back online. The servers were back online and in service by 11:21 pm. No email should have been lost as a result of this outage.
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