COMPUTER FUNDAMENTALS

Detailed explanation-1: -There are three common protocols used to deliver email over the Internet: the Simple Mail Transfer Protocol (SMTP), the Post Office Protocol (POP), and the Internet Message Access Protocol (IMAP). All three use TCP, and the last two are used for accessing electronic mailboxes.

Detailed explanation-2: -Internet Message Access Protocol, or IMAP, is a standard email retrieval (incoming) protocol. It stores email messages on a mail server and enables the recipient to view and manipulate them as though they were stored locally on their device(s).

Detailed explanation-3: -SMTP Protocol SMTP is the principal email protocol that is responsible for the transfer of emails between email clients and email servers.

Detailed explanation-4: -POP3 only allows a single device at a time to access the emails. IMAP allows multiple devices at a time to access and read the available mails. A user cannot update or create emails on the mail server by using the POP3 protocol. You can use the IMAP protocol for updating or creating emails.

Detailed explanation-5: -Internet Access Message Protocol (IMAP) and Post Office Protocol version 3 (POP3) are both pull type protocols that are used by mail clients to retrieve emails.