Checking SMTP Service with Telnet on console
Learn how to use Telnet to check SMTP service connectivity. Troubleshoot email issues by manually testing SMTP servers. Optimize email delivery.
This step-by-step guide explains how to verify an SMTP service using Telnet. Learn how to manually test SMTP connectivity to troubleshoot email delivery issues. Optimize search engine visibility with this SEO-optimized tutorial.
1. Open Command Prompt or Terminal:
Launch the Command Prompt (Windows) or Terminal (Mac/Linux) application on your computer.
2. Connect to SMTP Server:
Enter the following command to initiate a Telnet session with the SMTP server:
telnet smtp.example.com 253. Identify SMTP Banner:
Upon successful connection, the SMTP server will send a banner message. Read the message to confirm the server's identity.
4. Send a Test Email:
To simulate an email sending process, enter the following commands:
HELO example.com
MAIL FROM: <sender@example.com>
RCPT TO: <recipient@example.com>
DATA
Subject: Test Email
This is a test email.
.
QUIT5. Review Responses:
After each command, the SMTP server will respond with codes indicating the success or failure of the operation. Look for a "250" response code, indicating successful delivery.
6. Disconnect from SMTP Server:
To end the Telnet session, enter the command:
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