A user calls network support and reports that email is not working. Which of the following should the technician do FIRST?

A.
Ask the user what operation was performed, what the expected result was, and what the actual result was.

B.
Scan a list of open ports on the mail hub to scan for excessive traffic and escalate to network administrator if needed.

C.
Attempt to send a test email message to a known account at a remote facility and scan logs to see if it is sent.

D.
Determine which mail hub the user was connected to and perform a graceful restart.