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Computer Networks
Smtp
Q
Which one of the following is an SMTP server configured in such a way that anyone on the internet can send e-mail through it?
AA. Open mail relay
BB. Wide mail reception
CC. Open mail reception
DD. Short mail reception
Correct Answer:
A. A. Open mail relay
Explanation:
Anyone can send an e-mail through an Open Mail Relay server so it acted like a free relay for email agents to forward their mails through. Open Mail Relays are now unpopular because they can be used by attackers to perform man-in-the-middle attacks.