Using Outlook for iOS in business environments for email and scheduling
Hi Veselý Jan
Based on your description, the issue appears to affect multiple iOS/iPadOS devices and networks, which suggests it is unlikely to be device-specific or related to your local network configuration.
At this time, there is no publicly documented change or known issue that specifically matches this behavior of the Report Message add-in on Outlook for iOS/iPadOS. Since the built-in Report Junk/Spam feature continues to work, as a temporary workaround, please continue using that option to report suspicious messages.
If the issue persists, it is recommended to open a support ticket with Microsoft 365 Support so that the Outlook mobile and Microsoft Support teams can investigate whether this is a recent service regression or add-in-related issue affecting mobile clients.
-Outlook mobile support: Get in-app help for Outlook for iOS and Android | Microsoft Support
-Microsoft Support: you can follow this guide Get support - Microsoft 365 admin | Microsoft Learn.
(Please understand that we're not Microsoft support, this is a user-to-user support forum. Moderators have no backend access and cannot directly intervene in Microsoft products. We provide only technical guidance and best-practice recommendations based on reported issues)
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