Transition from UWin Gmail to Microsoft 365 Outlook

IT Services has completed migrations of student e-mail accounts from UWin Gmail to Microsoft 365 Outlook that started in January 2020. In addition, as of January 2020, students who accepted offers of admission for future semesters will also use Outlook for their student e-mail accounts instead of UWin Gmail.

Alumni e-mail accounts will be migrated from UWin Gmail to Outlook in late 2020 / early 2021. In preparation for this transition alumni need to ensure that their UWin Account password is in good standing by November 3, 2020. UWin Accounts with a password that is not in good standing as of November 3 will be disabled starting November 4, 2020. Disabled accounts will not be migrated to Outlook.

 The University of Windsor is investing in this upgrade to provide students and alumni with:   

  • the same e-mail platform as faculty and staff, facilitating easier collaboration within the campus community   
  • an integrated system with communication, authoring and collaboration tools in one place (students only) 
  • more secure e-mail 
  • additional communication and collaboration tools such as Teams, Stream, Bookings and Shifts which require users to have Outlook mailbox and calendar (students only)

If you are not sure which e-mail system you should be using now, please visit

Please note that there will be no change to email addresses. It is only the tool students and alumni use for their e-mail that is changing. 

What Will Be Migrated

As part of the UWin Gmail to Microsoft 365 Outlook Migration, the following items in your UWin Gmail account will be migrated to Outlook and OneDrive (students only):

  • Mail Messages
  • Calendar Entries
  • Contacts (maximum of three addresses per contact)
  • Files stored in your Google Drive (students only)

What Will Not Be Migrated

Due to the technical limitations, the following will not be migrated:


  • Vacation Settings or Automatic reply settings as well as Filters or Rules


  • Shared calendars, cloud attachments, Google Hangout links and event colors


  • A maximum of three e-mail addresses per contact are migrated over
  • Gmail tags, contact URLs and custom tags are not migrated over

Files (students only)

  • Sharing Links will not be migrated.  You will need to reshare any files from OneDrive after migration.
  • File versions will not be migrated - only the most recent version of the file will be migrated to OneDrive
  • Google does not allow us to export Drawings, Forms, Sites, and Maps from Drive. These will not be transferred.
  • Google Docs, Slides and Sheets: Google's proprietary formats are not compatible with anything other than G Suite Drive. When migrating from G Suite, Docs, Slides and Sheets will convert to the Microsoft Office format
  • Any Google Doc, Slide or Sheet larger than 10MB will not migrate.  You will need to download and move any of these files over manually.
  • Any files marked as restricted will not migrate over

Gmail Labels vs. Outlook Mail Folders

Mail on Office 365 doesn't support labels. How is mail translated to folders? In order to provide the best mail experience in Outlook as well as account for the Focused/Other view, we translate most labels to folders. 

  • Mail with the 'Starred' label will become flagged.
  • Mail with the 'Important' label will influence its Focused/Other designation.
  • Mail with other labels will be copied into a folder with the corresponding label name.
  • Mail with no other labels will be moved to the Archive folder.

This means that some items that had multiple flags in GMail will appear in multiple folders in Office 365.


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Article ID: 94214
Wed 12/11/19 10:00 AM
Mon 11/2/20 11:40 AM