Suppose that John just set up an auto-forwarding mechanism on his work email address,
which receives all of his business-related emails, to forward them to his personal
email address, which he shares with his wife. John’s wife was unaware of this, and
activated a vacation agent on their personal account. Because John forwarded his
email, he did not set up a vacation daemon on his work machine. What happens when
an email is received at John’s work email address?