smtp tester tool

Test SMTP server configurations and validate email delivery with this comprehensive online testing tool

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About This Tool

This SMTP Tester Tool allows you to validate your email server configuration by testing SMTP connections, authentication, and email delivery. Enter your SMTP server details (host, port, encryption), provide authentication credentials, and send a test email to verify everything is working correctly. The tool provides detailed feedback about connection success, authentication results, and delivery status, helping you troubleshoot email server issues quickly.

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How to Use

Enter SMTP server details (host, port, encryption type)
Provide authentication credentials (username/password)
Set test email details (from address, to address, subject, message)
Click 'Test SMTP Connection' to validate server settings
Click 'Send Test Email' to verify email delivery
Review detailed results including connection status and any errors

Frequently Asked Questions

Find Quick Answers

What is SMTP and why do I need to test it?

SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending emails. Testing your SMTP configuration ensures your emails will be delivered properly and helps identify authentication or connection issues.

What information do I need to test my SMTP server?

You'll need your SMTP server hostname (like smtp.gmail.com), port number (like 587), encryption type (SSL/TLS), authentication credentials (username/password), and test email addresses.

Is my email password stored or logged when using this tool?

No, passwords are processed securely during the test session only and are not stored, logged, or retained by the tool after the test completes.

What ports should I try for my SMTP server?

Common SMTP ports are 25 (unencrypted), 465 (SSL), 587 (TLS), and 2525 (alternative). Most modern email services use 587 with TLS encryption.

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