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Office 365 message encryption logic
Hi Community,
One of the customer would like to understand the Office 365 message encryption logic while the senders domain/license is unavailable after the message is sent.
Scenario:
Sender : User A from Office 365 - Message encryption is enabled.
Recipient : User B from Gmail
User A sends the email message to User B
User B encrypt the message by entering onetime passcode.
Things working fine
Now, Office 365 tenant is decommissioned, licenses are removed.
Questions:
1. Will User B still be able to decrypt the previous message sent by User A who was from decommissioned Office 365 tenant?
2. Will User B require onetime decryption or have to decrypt every time while they open the message?
Any guidance about the logic would be of great help.
Many thanks in advance!
- If the tenant has been deprovisioned (this can take a little time after licenses have expired), any previously encrypted messages will be rendered unopenable.
- If the tenant has been deprovisioned (this can take a little time after licenses have expired), any previously encrypted messages will be rendered unopenable.
- Hi Vasil, Thank you very much for your inputs.
One another question is that
User B in this case needs to save the received emails for a period of 10 years as an example, Again, User A the sender, decommissioned their O365 tenant a while back.
How they can save or decrypt the emails to apply the retention rules for 10 years for legal reasons?- They cannot, that's kind of the point for having them encrypted in the first place.
