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- An SMTP session begins when the client opens a Transmission Control Protocol connection (TCP connection, sometimes called TCP/IP) to the SMTP server. The server responds with an opening message, expressed with code 250. This process is often called an SMTP handshake. The client then sends a HELO command (EHLO for ESMTP) and identifies itself.
mailtrap.io/blog/smtp/SMTP Basics: How It Works and Why It Matters [2024] - Mailtrap
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Jul 27, 2021 · How does SMTP work? How is SMTP different from other protocols (POP and IMAP)? Running your own SMTP server vs. using a third-party email service: What’s best?
- Bettina Specht
Jan 25, 2024 · How does SMTP work? An SMTP session begins when the client opens a Transmission Control Protocol connection (TCP connection, sometimes called TCP/IP) to the SMTP server. The server responds with an opening message, expressed with code 250.
The SMTP protocol is a text-based protocol that is composed of commands and replies. The SMTP client (Bob’s mail server in our case) sends SMTP commands whereas the SMTP server (Alice’s mail server) responds to these commands with numerical codes.
How does SMTP work? All networking protocols follow a predefined process for exchanging data. SMTP defines a process for exchanging data between an email client and a mail server. An email client is what a user interacts with: the computer or web application where they access and send emails.
The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages.
Aug 12, 2022 · And, to most users, sending an email is as easy as pressing a button. But email itself is exponentially more complex than simply hitting “send.” In fact, email is hard and even explaining how it works can get complicated. Here we’ll break down a core component of email delivery: SMTP.
Jun 30, 2024 · How does SMTP work? The Transmission Control Protocol (TCP) is the primary connection for communication between the mail sender and the mail receiver. In SMTP, the mail sender sends the data in command strings over this reliable ordered data stream channel.
