Internet Email is an asynchronous communication medium based on sent and received text and other multimedia attachments.

Question

a) What are the THREE main components of an end-to-end email system?

b) What THREE protocols can typically be used to access stored user emails on a server component from a client computer?

c) What are the typical limitations of the email protocols used in both the sending and receiving of email messages?

d) With supporting diagrams, explain how an email can be sent from a typical client system and be routed through several different servers and received by an end client.

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