The normal behavior for an HTML form is to send data to the server via a POST request. In web2py, the URL in the POST request would direct this to a controller function. For the data to be sent to a mailbox, the controller function would need to put the data into an email message body and send it to an email server.
Some servers are running in an environment that provides a local email server, but there are also various 3rd-party services (like mailchimp,
sparkpostmail.com, or
smtp.gmal.com [requires some extra stuff for security settings between app and gmail]) .
/dps