Alice is sending an email to Bob, whose address is bob@example.com. Explain in technical terms what happens along the way, in the context of what we have discussed in the course in regard to the operation of email. Alice is using a webmail account from her local Internet provider to compose and send the message. Bob is using a POP3 email account from his local Internet provider. Describe the process starting from when Alice sends the email until Bob reads the email. State any reasonable assumptions that you are making.