Block Non-Company Emails From Outlook on macOS

[gkounalis]

Hey JAMF Nation Community!

I was exploring with my team and wanted to see if there's a way to block users from adding a personal O365 account to their Outlook via a plist. I've checked around JAMF Nation and online and haven't seen anyone bring this up. Just wanted to see if anyone has implemented a solution in their own environments? 

Thanks!

[McAwesome · Accepted solution]

I believe the setting you are looking for is "AllowedEmailDomains"
https://learn.microsoft.com/en-us/deployoffice/mac/preferences-outlook#allow-only-corporate-mailboxe...

If you, like me, hate making plists, you can also use this Custom Settings Json to handle configuring things
https://github.com/Jamf-Custom-Profile-Schemas/ProfileManifestsMirror/blob/main/manifests/ManagedPre... 

[Mayank]

Hello, Give a try to below terminal script it. You need to enter only the domains which you want to be added to your test tenant and then check the behaviour.

Terminal script:  defaults write com.microsoft.Outlook AllowedEmailDomains -array "domain1.com" "domain2.com" "domain3.com'

Note: This script will restrict the user to configure a personal mailbox in the Outlook app but it will not restrict a user already configured a personal mailbox in the Outlook app.