Purpose
As you know, Microsoft provides the feature for Outlook to tag the external messages.
External tagging is an org-wide setting. You cannot deploy it to subset of users. DisableTagging sets the MAPI property 'IsExternalSender' to false. It means the External tag will not appear on ingoing messages of the given mailbox.
DisableTagging for Office 365 is a Power Automate flow.
Current version: 1.0.4
Installation




Testing
(assuming you have already enabled tagging via Set-ExternalInOutlook commandlet)
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