bbPress.org

@giuseppecuttone

i dont know any plugin that can handle notifications very well , all i know is the default bbpress notifications and they seem to be having issues for users lately.

as for changing the default email address see if this works

use this for custom email address

add_filter( 'wp_mail_from', function( $email ) {
	return 'webmaster@mydomainname.com';
});

use this for custom from name

add_filter( 'wp_mail_from_name', function( $name ) {
	return 'WordPress Email System';
});