Help with SMTP Internal Server Error in FastAPI

It looks like you're getting a 500 Internal Server Error, which is actually related to HTTP rather than SMTP. SMTP errors usually have different codes, so it's important to check the logs to understand the real issue. You might want to use Wireshark to see exactly which ports are being used during the connection. And don't forget to share a snippet of your code for better assistance!

It seems there's a bit of confusion here. Remember, SMTP is more of a behind-the-scenes protocol, while sending emails can also be done through APIs now. Since the 500 error is HTTP-related, you should refer to your API documentation for guidance if you're using an API to send emails. It's often a more reliable method nowadays due to SMTP's vulnerabilities.

Make sure to check the specific error code that's returned. Sometimes, your hosting provider might block certain ports, so it's worth verifying that you're allowed to make outbound connections on those ports. If you're getting that error only when deploying, the problem might not be with your code but with the server configuration.