apply_filters( 'password_change_email', array $pass_change_email, array $user, array $userdata )
Filters the contents of the email sent when the user’s password is changed.
Parameters
- $pass_change_email
 -  
(array) Used to build wp_mail().
- 
'to'
(string) The intended recipients. Add emails in a comma separated string. - 
'subject'
(string) The subject of the email. - 
'message'
(string) The content of the email. The following strings have a special meaning and will get replaced dynamically:- ###USERNAME### The current user's username.
 - ###ADMIN_EMAIL### The admin email in case this was unexpected.
 - ###EMAIL### The user's email address.
 - ###SITENAME### The name of the site.
 - ###SITEURL### The URL to the site.
 
 - 
'headers'
(string) Headers. Add headers in a newline (rn) separated string. 
 - 
'to'
 - $user
 -  
(array) The original user array.
 - $userdata
 -  
(array) The updated user array.
 
Source
File: wp-includes/user.php
Changelog
| Version | Description | 
|---|---|
| 4.3.0 | Introduced. | 
    © 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
    https://developer.wordpress.org/reference/hooks/password_change_email