When you attempt to Test and Enable a mailbox in Dynamics 365, one of the following alerts are logged:
- "Email can't be received for the mailbox <Mailbox Name> because the associated user doesn't have a valid Microsoft Dynamics 365 license. The mailbox didn't synchronize. A notification about this is posted on the alerts wall for the owner of the email server profile Microsoft Exchange Online.
Email Server Error Code: IncomingEmailNoLicenseAssigned"
- "Email can't be sent for the mailbox "Test Message" because the associated user doesn't have a valid Microsoft Dynamics 365 license. The mailbox didn't synchronize. A notification about this is posted on the alerts wall for the owner of the email server profile.
Email Server Error Code: OutgoingEmailNoLicenseAssigned"