Suppose you have a web-based email account, and you have just sent a message to a friend, Alice, who accesses her mail from her mail server using IMAP. Further assume that both you and Alice are using smartphone to access emails. Discuss in detail how the message went from your smartphone to Alices smartphone, by listing the series of application-layer protocols that were used to move the message between the two smartphones, as well as all events that occurred at each application layer protocol.