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Office 365 and Central Exchange Services at CSU is the primary resource for faculty and staff to find information regarding Exchange and Office 365 services. If you have questions or if you are looking for information not listed here, please contact the CSU Central IT Help Desk at

News, Announcements, and Updates

9/23/2015 - Office 365 Exchange Performance Problems affecting Outlook (Last Updated 9/28 at 2:20pm): Microsoft is reporting that they have completed the deployment of the fix to resolve the issues some users reported when connecting to Office 365 mailboxes using Outlook. They are currently monitoring the environment to verify the deployed fix works as expected. Please report any persisting Outlook performance or connectivity problems to

9/2/2015 - RESOLVED - Ongoing Office 365 Exchange Performance Problems (Last Updated 9/2 at 9:40pm): While early indicators showed that we might experience degraded performance in Outlook and Office 365 Exchange, Office 365 services were available throughout the day on Wednesday, 9/2. In the event this changes, please contact if you or your users notice problems so that we can convey the information to Microsoft to assist with troubleshooting.

9/1/2015 - RESOLVED - Reoccurrence of Office 365 Exchange Performance Problems (Last Updated 9/1 at 10:20pm): We received a few reports from users with Office 365 mailboxes who were experiencing problems similar to yesterday. Affected users reported e-mail problems including Outlook being slow or not updating as expected or not being able to send and receive e-mail. The latest update from Microsoft indicated that they identified a portion of their infrastructure that was unresponsive due to high resource utilization and they have redistributed the load away from those servers. Office 365 Exchange services should now be fully functional.

8/31/2015 - RESOLVED - Office 365 Exchange Performance Problems (Last Updated 8/31 at 7:30pm): Office 365 e-mail service has been restored. Prior to being restored some users with Office 365 mailboxes reported e-mail problems including Outlook being slow or not updating as expected or not being able to send and receive e-mail.

7/28/2015 - Office 365 Migration Schedule Posted: The Central Exchange to Office 365 Migration Schedule has been posted. The schedule is set so that users with the same Employee Department Number as specified in HR are moved together. A department's Exchange Resourcess (rooms, equipment, and shared mailboxes) are moved in the same batch as the area's Primary Exchange Resource Coordinator.

RESOLVED - UNSCHEDULED OUTAGE (Last Updated 7/15/2015 8:30PM) Office 365 Connection Issues: : Office 365 e-mail service has been restored. Microsoft engineers were able to identify and disable a recent update that resulted in connection problems from Outlook, the Office 365 portal, and mobile devices. At this time, Office 365 services are fully functional.

7/15/2015 - New User Mailboxes Created in Office 365: As of July 1st, all new user mailboxes will be created directly in Office 365.

6/16/2015 - Office 365 Status Check Tools: An Office 365 Mailbox and License Check tool is now available for users to check the status of their Office 365 account and Exchange mailbox, including when a user's mailbox is scheduled to migrate in cases where a date has been set. A similar tool is also available for Resource Coordinators (look for the "O365 Migration Check" llink) to check the current location and migration status of users mailboxes, shared mailboxes, and room/equipment mailboxes.

5/28/2015 - Video Recording of Office 365 Migration Open Forum Session Available: A recorded session of the Office 365 Open Forum is viewalble online at Exchange to Office 365 Open Forum - 5/27/2015

5/20/2015 - Office 365 Migration Open Forum Session Dates:: ACNS is hosting Exchange to Office 365 Open Forum sessions. All sessions will be held in the Morgan Library Event Hall at the dates and times listed below:

  • Friday, May 22 from 10:00am-11:00am
  • Tuesday, May 26 from 3:00pm-4:00pm
  • Thursday, May 28 from 10:00am-11:00am
The PowerPoint presentation presented at the open forums is viewable at Transitioning E-mail & Calendaring to Office 365 (PowerPoint).

4/29/2015 - Help.Mail Updates: We made some changes to the layout of help.mail to make it easier for people to find information related to Office 365. Note that information for Central Exchange is still accessible under the "Central Exchange at CSU" navigation section on the left.

3/6/2015 - First Phase of Lamar Migration Complete: The Lamar to Central Exchange migration is complete for users who had mailboxes on both systems. The next step in the Lamar migration is to migrate users who only have a mailbox on Lamar to Office 365. ACNS is finalizing testing of that process and will post a schedule once it's set.

1/7/2015 - Scheduled Maintenance for Central Exchange - 1/12/2015; 6pm-Midnight: During the maintenance window, we will be installing Update Rollup 7 for Exchange 2010. Exchange will be available throughout the maintenance period but Exchange servers will be rebooted, which may cause some e-mail clients to momentarily "freeze" as they re-connect to a different Exchange server.

12/23/2014 - Planned Update to E-mail Options and Processes in eID: Starting Monday, December 29, the options presented via the "Change E-mail Address" form at the eID web site will be updated as Exchange eligibility is extended to include to all eIDs except for undergraduate students, whose e-mail accounts are provided by Google Apps. Central Exchange mailboxes will automatically be created for new eIDs (including graduate students and secondary eIDs) created on or after December 29. This change is the first step in decommissioning Lamar and is necessary to stop the creation of new Lamar accounts.

12/18/2014 - Office ProPlus Available to All CSU Users: CSU has extended Office 365 licensing so that all CSU users (faculty, staff, associates, etc.) with an active eID are eligible to download and install up to 5 copies of Microsoft Office for personal use. Prior to this change, some users - most notably faculty/staff who were not classified as "Information Workers" - were not eligible to use Office ProPlus. More information about Office ProPlus and how to download and install Microsoft Office is available from the Download Office section of this site.

12/16/2014 - Video Recording of Lamar Migration Open Forum Session Available: The Lamar Migration Open Forum session held on 12/11 was recorded and the video can be viewed by accessing the following link: Decommissioning Lamar Open Forum - 12/11/2014

12/08/2014 - Additional Dates for Lamar Migration Open Forum Sessions: Additional dates have been added for Lamar Migration Open Forum sessions. The next scheduled sessions will be held in the Morgan Library Event Hall on Tuesday, December 9, 2:00PM-3:00PM and Thursday, December 11, 11:00-12:00PM. The PowerPoint presentation is viewable at Decommissioning Lamar Open Fora (PowerPoint).

11/14/2014 - Lamar Migration Open Forum Sessions: ACNS is hosting open forum sessions to publicize decomissioning Lamar. The next scheduled sessions will be held in the Morgan Library Event Hall on Tuesday, November 18, 10:30-11:30AM and Thursday, November 20, 9:00-10:00AM. Additional Lamar migration information is also available via the Lamar Migration link listed under the Office 365 navigation.

10/20/2014 - New Certificate Installed: A new certificate was installed for to replace an expiring cert. Please contact if you have questions or notice any problems with e-mail clients connecting with the new certificate in place.

9/24/2014 - Known Issue with Google Chrome v37 and Outlook Web App: Users who utilize Google Chrome to access Outlook Web App (OWA) will be impacted by a recent update to Google Chrome that prevents users from accessing the Address Book by clicking the "To..." or "CC..." link when composing a new message. The cause of this is a recent Google decision to no longer support modal dialog boxes, which are used by OWA. Because a server side fix is not available, impacted users will need to either click the option to use the light version of Outlook Web App on the login screen or use a browser other than Google Chrome to access OWA. Optionally, IT admins may considering implementing a Group Policy setting that extends support of modal dialogs through April 30, 2015 and has effectively mitigated the problem on Windows PCs during preliminary testing by ACNS.

8/12/2014 - Office 365 Q&A Meeting Scheduled: ACNS is hosting an Office 365 Q&A session on Thursday, August 14 from 2:00pm-3:00pm in room 224 at the Lory Student Center. Please plan to attend if you have questions about Office 365 services, including the upcoming transition to Office 365 Exchange for e-mail.

7/28/2014 - Office 365 Services Available: Office 365 services including Lync, OneDrive for Business, and Microsoft Office subscriptions for eligible users are now available. More information about Office 365 has been posted to this site under the newly added Office 365 navigation menu on the left.

12/31/2013 - Exchange Calendaring Best Practices Posted: Refer to the Exchange Calendaring Best Practices post for recommendations regarding use of Exchange calendaring from Outlook, mobile devices, etc.

10/31/2013 - Outlook for Mac 2011 Best Practices: Please refer to the Outlook for Mac 2011 Best Practices post for new recommendations regarding the use of Outlook 2011. Specifically, it is recommended that no more than 5,000 items be stored in any given folder when using Outlook for Mac 2011 to access Exchange.