Free IMAP email connection tester
Quickly test your email client’s IMAP 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 POP and SMTP using the same test credentials.
This tool is free and anonymous, no registration or email required.
Your test IMAP server is ready to use. Set up your email client or app to connect to
No recent activity found – monitoring paused
Need help getting set up? See our client setup guides for links to walkthroughs with common email apps.
What is IMAP?
IMAP (Internet Message Access Protocol) is the standard protocol for accessing email stored on a mail server. Unlike POP3, IMAP keeps your messages on the server and synchronizes them across all your devices — reading a message on your phone marks it as read on your desktop too. Most modern email clients use IMAP by default.
IMAP typically uses port 993 with SSL/TLS. If you need to test a POP3 or SMTP connection, use our POP3 tester or SMTP tester.
Connection tester help
My client connects but doesn't appear in the log
Click I've set up my client to start monitoring, then trigger a fresh connection from your client. Some clients only connect when you open the app or click Send / Receive.
Authentication failed / login rejected
Double-check that your client is using the exact username and password shown above. The username is a full email address and the password is case-sensitive.
TLS handshake failed or connection refused
Ensure your client is configured for SSL/TLS on port 993, not STARTTLS or plain text. If your client only supports older TLS versions, try our legacy server.
The server shows a connection but login never succeeds
Your client may be sending credentials in an unsupported format. Check that your client's authentication method is set to Normal password or Plain.
My emails aren't being received
The connection test tools on this page are free to use, but please be aware that no real messages are sent or received outside of the test environment. Attachment contents are removed. Test servers and all data are deleted after one hour.
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