The protocol that is used to send e-mails is ______.

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KollegeApply · Accepted Answer

The protocol that is used to send e-mails is SMTP. Explanation: To send and receive email, SMTP (Simple Mail Transfer Protocol) is needed. It is sometimes used in conjunction with IMAP or POP3 (for example, by a user-level program), which handles message retrieval, whereas SMTP primarily delivers messages to a server for forwarding.

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