Question

which protocol sends electronic mail?​

Answer 1

Answer:

Simple mail transfer protocal(SMTP)

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Answer 2

Answer:

It issues with your command to proceed

Explanation:

Simple Mail Transfer Protocol (SMTP)

Simple Mail Transfer Protocol (SMTP) is the standard protocol for sending emails across the Internet. By default, the SMTP protocol works on three ports: Port 25 - this is the default SMTP non-encrypted port.