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Rammy CharlesFlag for United States of America

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Prevent Office 365 Users from Setting up Outlook E-mail

Would like to know if it is possible to restrict the ability of Office 365 / Exchange 365 users from downloading their entire mailbox through the Outlook client (Office suite of applications) to only a whitelisted IP addresses (for example corporate networks).

Meaning users could only retrieve e-mail from Outlook web via Office 365 or ActiveSync.
Avatar of Vasil Michev (MVP)
Vasil Michev (MVP)
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If you have AD FS in place, you can use claims rules to restrict access to specific addresses only. Otherwise you can disable the MAPI protocol for said users via Set-CasMailbox.
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ASKER

No ADFS but would like to restrict MAPI but only to a specific IP (is that possible)? For example, our corporate LANs and whitelist those IPs so that only MAPI connections from there would be allowed.
ASKER CERTIFIED SOLUTION
Avatar of Vasil Michev (MVP)
Vasil Michev (MVP)
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