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.
Microsoft OfficeMicrosoft 365Exchange
Last Comment
Vasil Michev (MVP)
8/22/2022 - Mon
Vasil Michev (MVP)
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.
Rammy Charles
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.