/** ******** ******** ******** ******** ******** ******** ******** ******** 
* TITLE:       Change admin name to new users
* DESCRIPTION: enter the full name you want displayed alongside the email address
* 
* http://miloguide.com/filter-hooks/wp_mail_from_name/
*/


function newuser_filter_wp_mail_from_name($from_name){
return "Best Name Ever";
}
add_filter("wp_mail_from_name", "newuser_filter_wp_mail_from_name");

http://miloguide.com/filter-hooks/wp_mail_from_name/

enter the full name you want displayed alongside the email address

Wordpress: Change admin name to new users

wordpress

PHP