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The link can't be sent because at least one recipient isnt valid
Hi all, When I try to share to "specific people" from OneDrive or SharePoint online I get an error message "The link can't be sent because at least one recipient isn't valid" It happens with all ex...
In my experience this occurs if an external email is entered in domain AD account. Lets say you build an account and it obviously has a domain username, but you put external email in the email field (we do this sometimes with contractors). It will resolve the email to the AD account which, if it isn't licensed for 365 products, won't work. Also, make sure the external email address isn't an alias or something in exchange.