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Rmartin0000's avatar
Rmartin0000
Copper Contributor
Jun 22, 2021

O365 Email Encryption to internal tenants not working

Hi,

We are using O365 Business Premium E1 license.....We've created new exchange rule for encryption for one of the test user only and assigned the Right mgmt license to that specific user but while sending an email with encrypt option enabled it works only for Gmail services whereas internal tenants and Hotmail appears plain text with a mail tip.

checked the rule is correctly configured but Right mgmt service shows disabled tried to manually activate the service but didn't work so we've raised the ticket to Microsoft to investigate on this and as per their confirmation, Encryption works only 3rd party services like Gmail not for own domain users and Hotmail.

However, I disable the encryption rule and remove the Right mgmt license to everyone yet all users can still able to send encrypt msg to Gmail and it works but not for internal users and Hotmail, I've attached the IRM test config for your easy reference, kindly review and advice if this is normal or do I need to do some changes in order to work 

Appreciate your support.

Thank you

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