A technician has completed the installation and configuration of a third email server.
The technician has configured the firewall to permit email traffic, but the mail is only being received by the two older servers.
Which of the following should the technician configure to ensure incoming email will be processed by all three servers?
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A. B. C. D.D.
The correct answer to the given scenario is D. Update the MX record in DNS.
Explanation:
MX (Mail Exchanger) record is a type of DNS record used for specifying the mail server responsible for accepting email messages for a particular domain. When someone sends an email, their email client looks up the MX record for the recipient's domain to determine where to send the email.
In this scenario, the technician has installed and configured a third email server but incoming email is only being received by the two older servers. It means the email traffic is still being directed to the older servers, and the new server is not being recognized as a valid mail exchanger for the domain. This suggests that the MX record in DNS needs to be updated to include the new email server.
Therefore, the technician needs to update the MX record in DNS to ensure that incoming email traffic is distributed among all three email servers. By updating the MX record, the email traffic will be directed to all three servers, and the new server will receive email along with the older ones.
The other options in the given scenario are incorrect.
Option A - Enabling NTP to ensure all three servers are synchronized has nothing to do with email traffic flow.
Option B - Configuring IMAP on the new mail server will only enable clients to access their emails using the IMAP protocol. It will not help in the distribution of incoming email traffic among all three email servers.
Option C - Adding the DNS server option in DHCP has nothing to do with email traffic flow either.
In summary, the technician needs to update the MX record in DNS to ensure that incoming email traffic is distributed among all three email servers.