[Suggestion] Email authentication

[yyewolf]

Adding a email authentication system :

New mode of registration (email only), it sends an email with a temporary password and the user can change it later. New config :

• SMTP configuration
• Email whitelist and blacklist (to only allow one domain or to remove others)
• Mail formatting (with templates html files)

Thank you !

[goosBanny]

bump! would be incredibly nice to have.

[comendantmc]

This feature makes a lot of sense, especially because it's extremely difficult (maybe even impossible without editing limboauth itself) to allow to type any commands before user signs in (for /email recover), at least I couldn't find a good solution.