SMTP Test Mailer

Send one real test email through your SMTP server and see the server's own reply.

Ready

SMTP host

Port and encryption

Username

Password or App Password

From email

Send test to

Sender name, subject and message (optional)

From name

Subject

Message

Your password is used for this one test and never stored.

Result

Fill in the form to test

Server —

Encryption —

Auth

—

Time

—

Delivered to

—

Host
Waiting for input
Your mail server
Connect
—
Port and encryption
Sign in
—
Username and password
Send
—
Hand over the message

Test result

Fill in the message and SMTP settings above and send a test. The server’s result and the exact settings used appear here, with the server’s own error message if it fails.

Fair-use limit: 5 tests per hour and 20 per day for each visitor IP address, to protect this server’s reputation.