312-50v11 Exam Dumps | Which of the following commands checks for valid users on an SMTP server?

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ECCouncil.312-50v11.v2021-09-15.q131
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Question 91/131

Which of the following commands checks for valid users on an SMTP server?

A. RCPT

B. CHK

C. VRFY

D. EXPN

Correct Answer: C

The VRFY commands enables SMTP clients to send an invitation to an SMTP server to verify that mail for a selected user name resides on the server. The VRFY command is defined in RFC 821. The server sends a response indicating whether the user is local or not, whether mail are going to be forwarded, and so on. A response of 250 indicates that the user name is local; a response of 251 indicates that the user name isn't local, but the server can forward the message. The server response includes the mailbox name.

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