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Microsoft 365 Known Issues


Here are some known issues that may affect your experience.

The term Outlook refers to the Outlook desktop client while the term webmail refers to the web version.  Microsoft 365 refers to both.

New Webmail Issues

These issues were introduced following Microsoft’s update to Outlook for the Web in the Summer of 2019.

Issue Workaround
All appointments on shared calendars appear duplicated. Remove the shared calendar from your left hand column and re-add it by going to Import Calendar > From Directory. A support case has been opened with Microsoft in hopes they will provide a fix that doesn't require this step.
Zoom plugin for Outlook on the Web does not appear when scheduling an appointment on a shared calendar. Begin by acting like you will create a meeting on your own calendar and click the Zoom plugin to add the Zoom information in the appointment *before* specifying which shared calendar will hold the meeting.
Most or all print views from Outlook on the Web are incomplete, showing only the a few lines of the expected information. Use the desktop version of Outlook. Microsoft expects a fix by October 5th.
Daily calendar will only print the current day's information—no ability to print the daily calendar for tomorrow, etc. Select the desired day in the mini calendar in the top left and then hit print.

Calendar issues

Issue Workaround
You notice missing calendar appointments, missing meeting updates, issues with accepting, declining, and sending meeting invitations, etc. Do not accept, decline, modify, or invite others to appointments from your mobile device. Calendar events should be treated as read-only on a mobile device.
You have Free/Busy permissions to a shared calendar but the calendar won't open in Outlook for Mac or Apple Calendar. In order to access a shared calendar on a Mac client the calendar must be shared with a minimum of Reviewer permissions. See "You do not have permission" error message when you try to open a shared Calendar folder in Outlook for Mac for more information.
Your  iPhone, OS version 9.1, is sending out multiple invitations or acceptances for meetings — both future and past. Turn off email and calendar syncing on your iPhone and then turn it back on. See How to Re-sync the iPhone or iPad Calendar for instructions.
The email you receive after scheduling/accepting a meeting sometimes says that the meeting is scheduled using the UTC Monrovia, Reykjavik time zone instead of PST. This issue has been reported to Microsoft and they have acknowledged that it's a bug. It is not a high priority for them to fix, since the meetings are scheduled for the correct time and only some messages are incorrect. takes you directly to email view, not calendar view. From the Microsoft 365 settings, under Start Page, select the app you want to see when you open Microsoft 365.
Sharing your calendar to non-Stanford affiliates is not working. We have a ticket in with Microsoft.  When it works, right-click your Calendar and select Share.  Enter the fully qualified email address and click share.  

Email issues

Issue Workaround
Spell check - in webmail, there is no spell check. Use the browser's spell check from the Edit menu.
Rules - in webmail, filtering a Stanford mailing list using the list name it was received from (i.e., stanfordstaffers) does not work. Create the rule using the mailing list's sent address (i.e.,
When copying and pasting multiple addresses into the To: field, webmail does not recognize addresses if they are not in your contacts. Separate each address with a semicolon.


Issue Workaround
You get an error when trying to log in to Outlook with single sign-on. If you have a personal Microsoft 365 account that was set up using your email address, you may get  an error message or stuck in a perpetual loop when signing in to Outlook with two-step authentication. You need to rename your personal account.
When you search for yourself in Microsoft 365, your name doesn't come up. If your email address or SUNetID are set to "Private" in StanfordYou (, the GAL (Global Address List) in Microsoft 365 marks your record as private. If you change the settings in StanfordYou to "Stanford", you will be visible in Microsoft 365.
How do you search by category in webmail? In the search box, enter category: <name of your category in Microsoft 365>
"Sign out" in Microsoft 365 doesn't fully log you out of your browser. To log out completely, quit this browser program when you are finished and log out of Network Identity Manager or Kerberos Commander.
Last modified February 26, 2024