A very helpful tool is the email password recovery email. If this is setup the users can request a password recovery mail to be sent to the persons email account if the password has been forgotten.
On the global email setting you need to setup the URL for InterFormNG2:
When that is setup the users can now request a new password on the sign on pop-up window:
If the user click on this icon they are requested to type in the user id or email address:
and when the user clicks on Send this confirmation will be shown:
and email will be sent with a link to be used for typing in the new password.