- Email — SMTP/POP3/IMAP · Computer Networks
LLearnViaNotes @learnvianotes· 1 min read Three protocols, three different jobs in the lifecycle of an email.
Sender → Sender's SMTP server → Receiver's SMTP server → Receiver
To find which server handles mail for a domain, a special DNS record is queried — the MX (Mail Exchange) record, checkable via dig -type=mx gmail.com.
Receiving (download & delete) — POP3
Receiving (multi-device sync) — IMAP
Free for students and teachers
Write notes like this one
Cards for every idea, quizzes and flashcards, read aloud — on the web and your phone.
Something wrong with this note? Open it to report