I found a documentation on mail server setup to create issues and comments using email in JIRA Create issues and comments from email | Atlassian Support. The authorization of admin is requested, please share the next steps to be performed on Azure end for the integration.
There is a link to MS in the Atlassian article.
Here is the link, this should help you in MS -> https://learn.microsoft.com/en-us/azure/active-directory/develop/application-consent-experience
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