The Journal user account is unable to authenticate with Mimecast.
Journaling requires a user account within the customer infrastructure to log on with during the journaling process. These account details are configured on Mimecast, and are used during this logon process. If these credentials do not match, the connection will fail, and Mimecast will be unable to logon and retrieve emails from the journal mailbox.
Once you have confirmed that no infrastructure or device changes have been made, please consider the following:
- Has the Journal account been moved or deleted?
- Has the password for the Journal account been modified or reset?
- Is the Journal account still active, and not expired or locked out?