User receives notifications of other users calendar even though he has disabled the Notifications of the shared calendars on the Online Outlook

Question

User receives notifications of other users calendar even though he has disabled the Notifications of the shared calendars on the Online Outlook

Kostandin Thana 20

The Notifications for the shared Calendars are disabled on Online Outlook and still the user is receiving appointment notifications from the two calendars that he has Added. User doesn't want to receive any notification from the two calendars that he has added. How can it be fixed this issue ?

ChristyZhang-MSFT 26,126 Reputation points Microsoft External Staff

2023-11-27T07:04:35.5033333+00:00

Hi @Kostandin Thana ,

Just checking in to see if above information was helpful. If it is useful, would you mind marking the helpful post as an answer? Which would benefit others who also has similar issues in forum.
Thomas Lenz 5 Reputation points

2024-11-07T01:30:37.3266667+00:00

We're experiencing the exact same problem. Can anyone help please! Thank you!
Felix 5 Reputation points

2024-12-20T10:34:11.62+00:00

We have the same Problem!
Fabian Lorenz 0 Reputation points

2025-03-11T11:18:45.3033333+00:00

We also have users that report this Problem from the New Outlook App. They even receive notification from other calenders, who marked an event as Private. So the Push Noification says [private] and the user cant see any other informations of the event.

Wo tested things with one user and the microsoft Support.

Things like, clear the outllok app, install updates, check windows notification settings and create a new Outlook Profile.

Surprise, nothing changed.

New the Support tells me to create a new locale user Profile on the Machine of the user...

This doesnt do anything. New Outlook and exchange Online is buggy and sending calendar notifications to random users. Seams that Microsoft itself has no iead what to do.

One Support member told me, that they're still using the "old" outlook and named the new Outlook as stil in Beta state.... This is realy stressing me.
Thomas Lenz 5 Reputation points

2025-05-12T06:33:25.46+00:00

We are experiencing the issue in the old Outlook. I think its not related to the Outlook Version.

Could anyone please help!? Thanks!
Nev Percy 0 Reputation points

2025-07-11T08:39:33.58+00:00

I'm experiencing this problem in New Outlook, getting Desktop notifications ('banners' in the corner of the screen, not email notifications) from our CEO's Calendar, which is a worry for our organization's data security.

It's infrequent enough that his whole Calendar can't be doing it all the time, and the intermittency is likely to make it hard to track down. But this is a direction I've suggested the CEO and IT administrator might look:
the problem may occurs because there is a hidden delegate rule in the mailbox even though you have removed delegation.

1 answer

Your answer

ChristyZhang-MSFT 26,126 Reputation points Microsoft External Staff

2023-11-27T07:04:35.5033333+00:00

Hi @Kostandin Thana ,

Just checking in to see if above information was helpful. If it is useful, would you mind marking the helpful post as an answer? Which would benefit others who also has similar issues in forum.
Thomas Lenz 5 Reputation points

2024-11-07T01:30:37.3266667+00:00

We're experiencing the exact same problem. Can anyone help please! Thank you!
Felix 5 Reputation points

2024-12-20T10:34:11.62+00:00

We have the same Problem!
Fabian Lorenz 0 Reputation points

2025-03-11T11:18:45.3033333+00:00

We also have users that report this Problem from the New Outlook App. They even receive notification from other calenders, who marked an event as Private. So the Push Noification says [private] and the user cant see any other informations of the event.

Wo tested things with one user and the microsoft Support.

Things like, clear the outllok app, install updates, check windows notification settings and create a new Outlook Profile.

Surprise, nothing changed.

New the Support tells me to create a new locale user Profile on the Machine of the user...

This doesnt do anything. New Outlook and exchange Online is buggy and sending calendar notifications to random users. Seams that Microsoft itself has no iead what to do.

One Support member told me, that they're still using the "old" outlook and named the new Outlook as stil in Beta state.... This is realy stressing me.
Thomas Lenz 5 Reputation points

2025-05-12T06:33:25.46+00:00

We are experiencing the issue in the old Outlook. I think its not related to the Outlook Version.

Could anyone please help!? Thanks!
Nev Percy 0 Reputation points

2025-07-11T08:39:33.58+00:00

I'm experiencing this problem in New Outlook, getting Desktop notifications ('banners' in the corner of the screen, not email notifications) from our CEO's Calendar, which is a worry for our organization's data security.

It's infrequent enough that his whole Calendar can't be doing it all the time, and the intermittency is likely to make it hard to track down. But this is a direction I've suggested the CEO and IT administrator might look:
the problem may occurs because there is a hidden delegate rule in the mailbox even though you have removed delegation.

Answer 1

ChristyZhang-MSFT 26,126 Microsoft External Staff

Hi @Kostandin Thana ,

Welcome to our forum!

How did you add the shared mailbox?

If you added it as a separate email account in the same profile with the user's primary account (both accounts are listed under the Email tab when you check it via File > Account Settings > Account Settings), the notification of the shared calendar appears is an expected behavior.

You can try the below methods to avoid it:

1.If you have full access to the shared mailbox, you can let the shared mailbox auto-mapped to the user to avoid calendar reminders for the shared mailbox.

2.Add the shared mailbox as an additional mailbox via File > Account Settings > Account Settings > Email > double click on the user's account, choose More Settings > Advanced > Add:

User's image

Hope to help you!

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

SokiGuo-MSFT 31,551 Reputation points Microsoft External Staff

2023-11-28T06:06:57.76+00:00

Hi @Kostandin Thana ,

Haven't received your message for a long time. I am checking the status of this case. Please let us know if you would like further assistance. Meanwhile, if the reply is helpful to you, please try to mark it as an answer, it will help others who encounter the same issue and read this thread. Thank you for your understanding and patience!
ChristyZhang-MSFT 26,126 Reputation points Microsoft External Staff

2023-12-08T05:48:54.34+00:00

Hi @Kostandin Thana ,

I notice that your feedback, if you have any further updates on this issue, please feel free to post back.
Kostandin Thana 20 Reputation points

2023-12-12T07:49:25.9633333+00:00

Hi ChristyZhang-MSFT, thank you for reply but what you suggest is not the case.

The case is that user added other users' calendars (colleagues) (only) and she doesn't want to receive notifications from these calendars. only from her own calendar.
Kostandin Thana 20 Reputation points

2024-01-11T12:55:01.58+00:00

Hi Cristy the issue is with the Calendars not with the Shared email accounts. Issue Description: User added 2 other users' calendars (colleagues) and she doesn't want to receive notifications from these calendars when they book. He wants only from his own calendar to get notifications.
Thomas Lenz 5 Reputation points

2024-12-21T12:14:54.1166667+00:00

Hi Christy, we did not add a separate mailbox/email account. We just added the calendar from other people in the calendar view of Outlook. Our users receive notifications of those added calendars. I don't have a clue how to fix this. Any help is highly appreciated!
Thomas Lenz 5 Reputation points

2025-05-12T06:33:46.7633333+00:00

Any Updates Christy?

Thanks!

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User receives notifications of other users calendar even though he has disabled the Notifications of the shared calendars on the Online Outlook

1 answer

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