You work for an ISP and you are providing phone support help

You work for an ISP, and you are providing phone support, helping a customer set up Microsoft Office Outlook to connect to your company’s mail servers. You provide the name mail.company. com so that the customer can configure Outlook to connect to the ISP’s outgoing mail server, allowing the customer to send e-mails. In Outlook, what field must the customer use to enter the outgoing mail server name?

A. DNS

B. IMAP

C. POP

D. SMTP

Solution

When ever the client connects to a server, both needs a set of rules to be defined named as protocol.

Outlook mostly uses the below 3 protocols:

In mail server we mostly use POP3(post office protocol version3) , This is used to retreive incoming mails from the server.

we use SMTP(simple mail transfer protocol), this is used to send outgoing mails

IMAP(internet message access protocol), This is one of the new protocol but POP3 is widely used than this protocol

DNS is used in outlook to connect to the right exchange server and also helps to prevent spam emails .This also helps in instant messaging.