[App Server] Sending e-mail from local App Server - No SMTP server

Hi Ken,
Thank you for your answer.

Would you mind sharing were and how you configured the SMTP server (which configuration file, and the format of the configuration), because as I described before, my attempts to do so in the app yaml file, failed, and when I try to pass anything in the command line using --parameter-name, no matter what parameter I pass, it returns this:
“The current directory does not contain an Anvil app.
Specify the app to serve with the --app option.”

And the server doesn’t start.
I erase the --parameter from the command line, execute the same command again, and the server starts up fine.
I couldn’t figure out what I might be doing wrong.

Thank you!