Correct Answer - Option 1 : POP server
The correct answer is option 1.
POP stands for Post Office Protocol. It provides a standard mechanism for retrieving emails from a remote server for a mail recipient. In simple terms, a user who wants to receive emails but does not have a permanent connection to the internet uses a POP client to pull emails from the POP server.
Hence the correct answer is POP server.
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SMTP stands for Simple Mail Transfer Protocol, and SMTP server is an application used by mail servers to send, receive, and/or relay outgoing mail between email senders and receivers.
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Database servers are networked computers on a network dedicated to database storage and data retrieval from the database. The database server is a key component in a client/server computing environment. It holds the database management system (DBMS) and the databases.
