An email protocol is a set of rules that define how emails are sent, received, and stored between mail servers and clients. The three primary email protocols—SMTP, POP3, and IMAP—each serve distinct purposes in managing email communication. SMTP (Simple Mail Transfer Protocol) handles email sending, while POP3 (Post Office Protocol 3) and IMAP (Internet Message Access Protocol) manage email retrieval and storage. This guide breaks down what SMTP, POP3, and IMAP do, how they work, and ... Understanding the POP full form is important for students in computer science, medicine, construction, and for exam preparation. It often appears in competitive exams, interviews, and academic discussions, making it a must-know abbreviation. POP - Frequently Asked Questions What is the full form of POP in Information Technology, Telecommunication, Networking? Expand full name of POP . What does POP stand for? Is it acronym or abbreviation?