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Aplication Layer - Coggle Diagram

- - - - transfers mail
      - message must be formatted properly
      - SMTP processes must be running on both the client and server
      - message header must have a properly formatted recipient email address and a sender
      - uses port 25
      - mentransfer email lebih baik dan efisien
    - - enables a workstation to retrieve mail from a mail server
      - mail is downloaded from the server to the client and then deleted on the server
      - uses port 110
      - POP does not store messages
      - POP3 is desirable for an ISP, because it alleviates their responsibility for managing large amounts of storage for their email servers
      - Memungkinkan workstation untuk mengambil email dari server email
      - setelah email dikirim pada client maka email yang tersimpan di pusat akan dihapus
    - - Protokol lain untuk mengambil pesan email
      - tidak seperti POP yang menghus email, IMAP akan menyimpan email dalam server