Weel 9 - Application Layer (From 03)

Question 1

What are the 3 major components to email?

Answer 1

1. User Agents
2. Mail servers
3. SMTP

Question 2

What does each major components do?

Answer 2

1. User Agents - “ Mail Readers”
   - It is used for composing/editing/reading email messages such as outlook, iphone Mail app
2. Mail Servers -
   - Where incoming/outgoing messages are stored
   ( Mailbox contains incoming messages for user and messages queue of outgoing mail messages)

3 - SMTP - Simple mail transfer protocol between mail servers to send email messages