We do not save anything. Your SMTP password, API keys, and message content are used only to send this test email. Nothing is written to disk, database, or logs on our server.

1. Choose provider

Quick preset

2. Transport

SMTP (SendGrid, Gmail, Mailgun, etc.) PHP mail() (uses this server’s default mail — not your SMTP)

3. SMTP settings

SMTP host

Port

Encryption

Use SMTP authentication

SMTP username

SMTP password / API key

4. Test message

From email

From name (optional)

Send test to

Subject

Message

Send as HTML

SMTP conversation

Server responses from the test (passwords are never shown).

Email Config Tester

1. Choose provider

2. Transport

3. SMTP settings

4. Test message

SMTP conversation