Disable auto-accept of meetings in Outlook

Question

Hi everyone,

We have a kind of strange issue; an user has disabled the 'auto accept' option for meeting request. But when she is receiving a meeting request, the reqeust is still accepted automatically.

I have checked the option in Outlook 2016, but the option is not turned on. We see this behaviour in both Outlook as Outlook on the Web. I also checked the mailbox properties with Powershell in Exchange 365, but there is no option to disable this in Powershell.

Does anyone here know how to fix this?

Kind regards,
Arjan

Answer 1

Hi @Arjan Broekhuizen ，

According to your description, this issue occurs to user mailbox not resource mailbox and only one user encounters this issue, please correct me if I misunderstand your issue. Based on these, here are some troubleshooting steps for your reference:

• Recreate outlook profile and check if this issue continues.
• Check if there is any inbox rule or mail flow rule related with the issue.
• Make sure if these meeting are accepted or just marked as tentative, here's a similar thread for your reference: How do I turn off auto accept invites in my calendar for Outlook 2010

there is no option to disable this in Powershell.

Yes, for user mailbox, we cannot use powershell command Set-CalendarProcessing to modify the AutomateProcessing parameter.

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