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Electronic Mail (Mail access protocols (POP3 (Post Office Protocol -…
Electronic Mail
User agents
Mail servers
Mailbox
Simple Mail Transfer Protocol (SMTP)
SMTP vs. HTTP
HTTP
Pull protocol
SMTP
Push protocol
Mail message format
Header lines
From:
To:
Subject:
Body followed by blank line
Mail access protocols
POP3 (Post Office Protocol - Version 3)
IMAP (Internet Mail Access Protocol)
HTTP (Web-based emails)