On a newly-installed mail server with the IP address 10.10.10.1, ONLY local networks
should be able to send email. How can the configuration be tested, using telnet, from
outside the local network?
A.
telnet 10.10.10.1 25 MAIL FROM<[email protected]> RECEIPT
TO:<[email protected]>
B.
telnet 10.10.10.1 25 RCPT FROM:[email protected] MAIL
TO:<[email protected]>
C.
telnet 10.10.10.1 25 HELLO bogus.example.com MAIL FROM:<[email protected]>
RCPT TO:<[email protected]>
D.
telnet 10.10.10.1 25 HELO bogus.example.com MAIL FROM:<[email protected]>
RCPT TO:<[email protected]>
E.
telnet 10.10.10.1 25 HELO: bogus.example.com RCPT FROM:<[email protected]>
MAIL TO:<[email protected]>