Using Outlook for iOS in educational settings for communication and organization
I understand how this can be concerning, especially if the email was reported by mistake.
Unfortunately, there isn’t a way to “unreport” an email in Outlook. When a message is reported as phishing or junk, it is typically moved out of your inbox and may also be submitted to Microsoft for analysis, so the action itself isn’t something that can be reversed.
That said, you can still try checking the following location in case the email is still available in your mailbox: Go to your Deleted Items folder > Select the email, tap the three dots (…) > choose Restore conversation.
If you’re using a work or school account, it’s also possible that the message has been handled according to your organization’s policies. In that case, you may need to reach out to your IT administrator for further help.
You may also find this similar discussion helpful: I accidentally reported an email as phising, how do I undo it? - Microsoft Q&A
I hope this helps.
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