We’ll let the experts explain this one.
Visit Microsoft's Encrypt email messages page for more information.
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 - Only users that belong to Cal Poly's implementation of Office 365 (people with an Office 365 account that ends with @ calpoly.edu) can access the content, make edits, and share with others inside Cal Poly. Recipients/addresses without a calpoly.edu account that receive messages with this setting will get notification of not having permissions to read the message if attempted.
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| title | Confidential View Only |
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 - Only users that belong to Cal Poly's implementation of Office 365 can view this content but cannot edit. They can print and share with others inside Cal Poly's implementation of Office 365that have a calpoly.edu account. Users external /(without a calpoly.edu addresses address) receiving messages with this setting will get notification of not having permissions.
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