Conducting an SMTP Diagnostic involves several steps:
Check SMTP Configuration: Ensure that the SMTP server settings (hostname, port, authentication) are correctly configured. Perform a Connection Test: Use tools like Telnet or PuTTY to test the connection to the SMTP server. Authenticate: Verify that the server accepts your login credentials. Send a Test Email: Send a test email to ensure that it is delivered successfully. Analyze Logs: Check SMTP server logs for any errors or warnings that need to be addressed.