Jon Christopher

It’s insecure to send user account passwords via email, so use this plugin to issue a password reset instead.

New User Password Reset

Automatically issue a password reset when creating new Users

wildoperation

Stop password changed emails from being sent to site admin after a user resets their password.
This plugin has no settings. Just enable the plugin, and the outgoing admin notifications will be disabled.

Disable Password Changed Admin Email

Stop password changed emails from being sent to site admin after a user resets their password.

New User Password Reset vs Disable Password Changed Admin Email