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SMTP vs POP3 vs IMAP with real life example | All in 1 | Application layer Protocols

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Here, Varun sir has explained Link state routing in computer networks.

SMTP POP IMAP
Simple Mail Transfer Post Office Protocol Internet Message Access Protocol
Protocol

Send Mail(Push Mail) Retrieve Mail(Pop Mail) Retrieve Mail(Pop Mail)

Port no.=25 Port no.=110(Default) & Port no.=143(Default) & 993(SSL)
995(SSL)

TCP or UDP TCP or UDP TCP or UDP

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