SMTPEMails

SMTPEMails refers to emails sent using the Simple Mail Transfer Protocol (SMTP). SMTP is a standard communication protocol used for sending electronic mail from one server to another. When you send an email using an email client like Outlook, Gmail, or Apple Mail, the client typically connects to an outgoing mail server using SMTP to transmit your message. This server then relays the email to the recipient's mail server, also using SMTP.

The SMTP protocol defines the commands and responses that mail servers use to exchange messages. It handles the initial transmission of the email from the sender's client to their outgoing server, and then from the sender's server to the recipient's server. While SMTP is primarily used for sending emails, other protocols like POP3 (Post Office Protocol version 3) and IMAP (Internet Message Access Protocol) are used for retrieving emails from a mail server.

SMTP operates on a client-server model. The email client (the sender's computer or device) acts as a client to an SMTP server. This SMTP server then acts as a client to the recipient's SMTP server. The process involves several steps, including establishing a connection, identifying the sender and recipient, transferring the email content, and closing the connection. SMTP is a fundamental component of the internet's email infrastructure, enabling the global exchange of electronic messages.