Online SMTP Tester

Quickly test and validate your SMTP server settings with WOW's free SMTP Test tool. Ensure reliable email delivery and troubleshoot issues effortlessly.

Leave empty if no authentication is required
Leave empty if no authentication is required
Common SMTP Settings
  • Gmail: smtp.gmail.com, Port 587, TLS
  • Outlook: smtp.office365.com, Port 587, TLS
  • Yahoo: smtp.mail.yahoo.com, Port 465, SSL

Online SMTP Tester

The SMTP Test tool by WOW (World of Webtools) offers a straightforward solution for verifying and diagnosing your SMTP server configurations. By inputting your SMTP server details, you can send test emails to confirm that your server is correctly set up and capable of sending emails.​

Key Features:

  • Supports common SMTP settings for providers like Gmail, Outlook, and Yahoo.
  • Allows testing with or without authentication.
  • Supports various encryption methods: TLS, SSL, or None.
  • No registration required; use it anytime for free.

Whether you're setting up a new email server or troubleshooting existing configurations, WOW's SMTP Test tool provides an efficient way to ensure your emails are delivered successfully.

SMTP Test – Frequently Asked Questions

1. What is an SMTP Test tool?

An SMTP Test tool allows you to check whether your email server is correctly configured to send emails. It verifies SMTP connection, authentication, and email deliverability in real-time.

2. Why should I test my SMTP server?

Testing ensures that your email system can send messages without errors. It helps identify configuration issues, authentication failures, or connectivity problems that can prevent email delivery.

3. What information do I need to run an SMTP test?

You'll typically need the SMTP server address, port number, sender email, recipient email, and login credentials (if authentication is required).

4. Is this SMTP Test tool free to use?

Yes! This tool is completely free and doesn’t require any installation or account setup.

5. Can I use this tool for Gmail, Outlook, or custom domains?

Yes. You can test Gmail SMTP (smtp.gmail.com), Outlook (smtp.office365.com), and any custom SMTP service as long as you have the correct configuration details.

6. Does this tool send a real email during the test?

Yes, the tool attempts to send a real test email to verify if your SMTP server is working properly. You’ll get a success or error message based on the result.

7. Will this test reveal issues with spam filters or email blocking?

Not directly. While it confirms whether an email can be sent, it doesn’t test inbox placement or spam filtering. For that, use dedicated email deliverability tools.

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