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When an email with a sensitivity label is sent to an external recipient who does not have the necessary permissions to access the content, the behavior you're experiencing can occur. The error message "Sorry, we can't display your message right now" is indicative of a connection issue or a problem with accessing the Azure Information Protection (AIP) endpoint, rather than a straightforward access denial message.
This situation can arise if the sensitivity label applied to the email restricts access in ways that prevent the external recipient from viewing the content. For instance, if the label scopes access to internal recipients only, the external recipient may encounter issues when trying to authenticate or access the encrypted message.
It's not uncommon for users to receive vague error messages in such scenarios, rather than a clear notification that they lack access to the email. This can lead to confusion, as the recipient may not understand why they cannot view the message.
For more details, please refer to the following documents that might help you in getting some useful insights:
- We can't display your message right now" error in Outlook Web App when an Exchange Online user views an encrypted message
- External recipient can't open encrypted email that uses Microsoft Purview Message Encryption
- Sensitivity labels are missing in Outlook, Outlook on the web, and other Office apps
- Manage sensitivity labels in Office apps
I hope this information helps. Please do let us know if you have any further queries.
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