Share via

Disable OWA on Tenant

Anonymous
2019-12-21T13:06:04+00:00

Currently when o365 mailbox is created OWA is auto enabled. How do I change this? 

Ideally I would like for only OWA be enabled for MFA enforced users.

Microsoft 365 and Office | Subscription, account, billing | For business | Other

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

3 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2019-12-24T21:17:03+00:00

    Hi GustavoG3058,

    Many thanks for your reply. I fully understand your concerns, however, in Office 365, OWA is auto enabled for new user mailboxes and we cannot set it to auto disable for future new users. 

    Considering your situation and demand to disable OWA for most of the existing 20K users, in addition to use the Exchange Admin Center as I mentioned in my previous reply, you can try to contact to Exchange online PowerShell and run the command "Get-CASMailbox | Set-CASMailbox -OWAEnabled $false" to disable OWA for all users. 

    After that, you may need to run the command "***Set-CASMailbox ***@contoso.com -OWAEnabled $true" for those MFA enforced users to enable OWA for them.

    Just a kindly reminder, as it is not feasible to auto disable OWA when creating new user mailboxes, you may need to disable OWA for each user in the future.

    Personally speaking, I understand this will cause a lot of inconvenience for your work. I'm sorry for this, if you would like this feature to be introduced to Office 365,  you may send us your feedback. Please take a moment to send us your feature request(s) by submitting your feedback in the following link: 

    https://office365.uservoice.com/forums/273493-office-365-admin

    Your feedback helps us know which features are most important to you, it help us constantly improving our functions for better user experience. We appreciate your valuable comments. Looking forward to your understanding.

    Best regards and Merry Christmas!

    Jennifer

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments
  2. Anonymous
    2019-12-21T18:02:00+00:00

    They are good suggestions.

    But this should be automated. We have 20K users. Users come and go. Cant manually be doing this.

    Was this answer helpful?

    0 comments
  3. Anonymous
    2019-12-21T14:55:18+00:00

    Hi GustavoG3058,

    Regarding your concerns, it is recommended to do following steps to see if it helps:

    1. Do to the Exchange Admin center> recipients > mailboxes.
    2. Click on the first user, press the Shift key, scroll down and click on the last user to select all users.
    3. Then to exclude those MFA enforced users, press the Ctrl key and click each MFA enforced user to unselect them.
    4. Then in the right window, click the "Disable" button under Outlook on the Web (like below picture) to disable OWA for all selected users.

    For more detailed information, here is an article for your reference: Enable or disable Outlook on the web for a mailbox.

    Regards,

    Jennifer

    Was this answer helpful?

    0 comments