Simplify secure zone password setup for new users

[Adam.Wilson]

Hey @Peter-Schmidt, I did post this a little while ago.
Not sure if it covers everything discussed here though:

BACKLOG: Suppress System Emails being sent

Would be nice to have the ability to suppress certain system emails from being sent after form submissions (ie: with a param in the action URL or a hidden field) as sometimes they don’t fit in with custom implementations or are just unnecessary. Some examples might be to not send the Secure Zone Details Email as we might be using an auto-response email with the form and don’t need to list Secure Zone details. Or with eCommerce/form payments we may not want to send an invoice email, or perhaps e…