SMTP email connection tester

Quickly test your email client’s SMTP connection abilities using a temporary mail account. Create a new server to begin, then connect with your application and see what it is actually doing in real time.

We’ll show you the raw connection details, and analyze the way your client behaves to help you understand any issues. If you need to test other protocols, we also have free testers for IMAP and POP using the same test credentials.

Your test SMTP server is ready to use. Set up your email client or app to connect to

on port (click to copy).

Use the email address and the password

Waiting for connections…

No recent activity found – monitoring paused

Need help getting set up? See our client setup guides for links to walkthroughs with common email apps.

This tool is free and anonymous, no registration or email required. No real messages are sent or received. Test servers and all data are deleted after one hour.