Avatar of Rammy Charles
Rammy Charles
Flag for United States of America asked on

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

Avatar of undefined
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.
ASKER CERTIFIED SOLUTION
Vasil Michev (MVP)

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
GET A PERSONALIZED SOLUTION
Ask your own question & get feedback from real experts
Find out why thousands trust the EE community with their toughest problems.
All of life is about relationships, and EE has made a viirtual community a real community. It lifts everyone's boat
William Peck