Exchange server maintenance: April 25-29

Tuesday, April 20, 2021

What is happening? Exchange servers are being removed from service for maintenance/updates. Individual servers will be taken out of service between 9:00 and 10:00 p.m. each night throughout the maintenance period. 

When is this happening? Sunday, April 25 to Thursday, April 29 between 9:00 and 10:00 p.m. each night.

Why is this happening? To patch a known vulnerability in Exchange 2016.

Who will it impact? Users that are actively connected to a server when it is removed for maintenance may be prompted to enter their username and password. Outlook may also alert users about being redirected to autodiscover.uwaterloo.ca. This is normal behaviour, and the user should click 'Allow' when this happens. No other impact is anticipated as the remaining servers will continue to carry out email and calendar functions. This maintenance will not impact mailboxes that are in Office 365.

Questions or concerns? Please contact the IST Service Desk, helpdesk@uwaterloo.ca or ext. 44357.

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