After reading RFC 2821, answer the following questions:
1.What would the command sequence in a normal SMTP session be? Use C: to preface a command issued by the client and S: to preface a command issued by the server.
2.What was the primary purpose of SMTP? Has it's purpose been modified? If so, how?
3.What security exists for SMTP? Are there other RFC's which document how SMTP can be secured? Describe what would need to be done in order to secure data in an SMTP session. Is this feasible or generally implemented?