Question

___ enables the actual sending and receiving of messages

Answer 1

SMTP (Simple mail transfer protocol).

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Answer 2

Answer:

SMTP (Simple Mail Transfer Protocol) enables the actual sending and receiving of messages.

Explanation:

In order to send an e-mail, internet connection is mandatorily required along with mail server access. To send and to receive the appropriate e-mails, the standard protocol named as SMTP is used. IT will send and receive mails over the internet.  

Once the e-message has been sent, the client will send or notifies the SMTP using a message. If the recipient is also from same domain such as Gmail, the message is stored in a server for the purpose of accessing it via POP, IMAP protocols for later retrieval.