$**$Email Protocols and Communication Endpoints$**$

$1.**$SMTP $($Simple Mail Transfer Protocol$)**$: This is the standard protocol for sending emails across the Internet. It works closely with MTA $($Mail Transfer Agent$)$ to send your communication to the right computer and email inbox.

$2.**$POP$3($Post Office Protocol version $3)**$ and $**$IMAP $($Internet Message Access Protocol$)**$: These are used to retrieve emails from a mail server. While POP$3$ downloads the email from the server to your local machine, IMAP leaves the email on the server, allowing multiple clients to access it$.$

$3.**$SSL$/$TLS $($Secure Sockets Layer$/$Transport Layer Security$)**$: These are cryptographic protocols designed to provide a secure connection between the client and the server over the Internet. They help protect the data from being tampered with or intercepted during transit.

$**$Communication Endpoints$**$

$1.**$Email Clients$**$: These are applications like Microsoft Outlook, Apple Mail, or web$-$based clients like Gmail and Yahoo Mail, which are used to compose, send, receive, and store emails.

$2.**$Email Servers$**$: These are computerized systems that send, receive, and store emails. The email servers are set up with SMTP$,$ POP$3,$ and IMAP protocols to handle the sending and receiving of emails.

$3.**$Web Browsers$**$: Web browsers can also serve as communication endpoints when using web$-$based email clients.

In summary, the transmission of an email message involves a combination of protocols $($SMTP$,$ POP$3/$IMAP$,$ SSL$/$TLS$)$ and communication endpoints $($email clients, email servers, web browsers$)$ to ensure the message is securely and accurately delivered from the sender to the recipient.

Rephrase please