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.
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 25
3. 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.
.
QUIT
5. 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:
QUIT
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