Examine the FortiMail IBE service configuration shown in the exhibit; then answer the question below.
Which of the following statements describes the User inactivity expiry time of 90 days?
A . First time IBE users must register to access their email within 90 days of receiving the notification email message
B . After initial registration, IBE users can access the secure portal without authenticating again for 90 days
C . Registered IBE users have 90 days from the time they receive a notification email message to access their IBE email
D . IBE user accounts will expire after 90 days of inactivity, and must register again to access new IBE email message
Answer: D