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Which protocol is used for sending email?

ASSH
BFTP
CHTTP
DSMTP (Simple Mail Transfer Protocol)
Answer & Solution
Correct answer: D. SMTP (Simple Mail Transfer Protocol)
SMTP: outgoing mail (port 25, 587 with TLS). POP3 (port 110): downloads mail to local client. IMAP (port 143): keeps mail on server, accessed from multiple devices. Modern email uses SMTP for send, IMAP for read.
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