=== SMTP Connection Test ===

1. Testing connection to smtp.mandrillapp.com:587...
   SUCCESS: Socket connection established

2. Server greeting: 220 smtp.mandrillapp.com ESMTP

3. Sending EHLO...
   Response received

4. Starting TLS encryption...
   SUCCESS: TLS encryption enabled

5. Sending EHLO after TLS...
   Response received

6. Authenticating with credentials...
   FAILED: Authentication failed - 535 5.7.8 Error: authentication failed: UGFzc3dvcmQ6
   
   Possible solutions:
   - Generate an App Password at: https://myaccount.google.com/apppasswords
   - Enable 'Less secure app access' if not using 2FA
   - Check if the password is correct