Exchange: The execution of cmdlet Enable-Mailbox failed: An unknown error has occurred. Refer to correlation ID: 9b09bf27-e1ea-40ee-bc1d-294ddf168a12 Note: Beware this could be not your solution. This post exposes an issue when using certain character's on cloud users specifically using in the fields Name, First name or last name the character "*" or other characters forbidden … Continue reading Exchange: The execution of cmdlet Enable-Mailbox failed: An unknown error has occurred. Refer to correlation ID: 9b09bf27-e1ea-40ee-bc1d-294ddf168a12