New Alumni who are still in their grace period as a former student
New alumni have until the the end of their grace period to opt-in to their @berkeley.edu Google Alumni accounts. Failure to opt-in as a new alumni prior to the end of your grace period will result in your account being disabled and scheduled for deletion.
Existing Employees who also happen to be alumni
While an employee, you can not opt-in to email services as an alum because @berkeley.edu Google accounts of existing employees are subject to different policies and have different features and quotas than Alumni. Existing employees who are alumni will be able to opt-in to email services as an alum during the grace period provided them when they separate from the university.