![]() If the recipient's address is not local to the server but can be forwarded to another server, this code is used. This is a general success code that indicates the requested mail action, such as sending an email or delivering it to a mailbox, was completed successfully If the client authenticates itself successfully with the server using a username and password, the server responds with this code to indicate that the authentication process was successful It's like saying goodbye and ending the communication The server sends this code to notify the client that the SMTP session is ending and the transmission channel is being closed. When a client connects to an SMTP server, the server responds with this code to indicate that it is ready to accept commands and process email It provides a help message or additional information that can assist the client in understanding the server's capabilities or commands. In response to the client's HELP command. It typically includes details about the server's capabilities, status, or helpful information for the client. Provides information about the status of the SMTP server or provides a system help message. Requested mail action completed: The email delivery or action was successful The SMTP server is ready to accept a new connection. The requested action or command was successfully processed and completed. SMTP 200 status codes indicate successful responses from the server. Below you will find a list of common SMTP status codes and the definition of the code. These status codes provide feedback to the client about the progress and outcome of the email delivery process. The SMTP server responds to each command with a corresponding status code, indicating the success or failure of the operation. The client-server interaction follows a series of commands and responses. SMTP operates on the client-server model, where an SMTP client (sender) initiates a connection with an SMTP server (receiver) to transfer the email. SMTP ensures that emails get sent and received properly, just like sending letters in the mail. It establishes a reliable and efficient means of communication between different email systems. ![]() At its core, SMTP is a set of rules and conventions that define how email messages should be structured, transmitted, and received between mail servers.
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