When I add a new customer the email goes to new user in this format:

From: WordPress [[email protected]]
Subject: [site name] Your user name and password
         username: user
         Password: password

Now I want to change this format Like this:

From: My Site Name [[email protected]]
Subject: siteurl.com customer account activated
       Your customer account has been activated.

       Your Login credentials are:

       Username: user email
       Password: password


I tried this answer but it's not working.

How can i do this?

3 Answers 3


For 2018 and onwards users:

David Gard's answer still works but is old and there's a new better/cleaner way to do this (no need for a plugin anymore).

Since WordPress 4.9.0 there are new filters you can use to customise registration emails:

Usage example on email sent to Admin (you can paste this in your theme's functions.php ):

add_filter( 'wp_new_user_notification_email_admin', 'custom_wp_new_user_notification_email', 10, 3 );

function custom_wp_new_user_notification_email( $wp_new_user_notification_email, $user, $blogname ) {
    $wp_new_user_notification_email['subject'] = sprintf( '[%s] New user %s registered.', $blogname, $user->user_login );
    $wp_new_user_notification_email['message'] = sprintf( "%s ( %s ) has registerd to your blog %s.", $user->user_login, $user->user_email, $blogname );
    return $wp_new_user_notification_email;

The new user notification email is created and sent by the function wp_new_user_notification(), found in wp-includes/plugable.php

There is no filter hook within this funciton that will allow you to manipulate the output of the email, however you can of course overwrite any pluggable function via a plugin.

Note - You can only overwrite pluggable functions from within a plugin, not from within your theme.

See here for more details on pluggable functions and a full list of those available - http://codex.wordpress.org/Pluggable_Functions

This code will create the plugin which will be used instead of the one in wp-includes/plugable.php (save it in its own file in wp-content/plugins/).

I haven't customised it for you, but this should get you on your way.

 * Plugin Name: Custom new user notification email
 * Description: Overwrites the pluggable 'wp_new_user_notification()' plugin to allow the sending of a custom email
 * Author: David Gard
 * Version: 1.0

if ( !function_exists('wp_new_user_notification') ) :
 * Pluggable - Email login credentials to a newly-registered user
 * A new user registration notification is also sent to admin email.
 * @since 2.0.0
 * @param int    $user_id        User ID.
 * @param string $plaintext_pass Optional. The user's plaintext password. Default empty.
function wp_new_user_notification($user_id, $plaintext_pass = ''){

    $user = get_userdata($user_id);

    // The blogname option is escaped with esc_html on the way into the database in sanitize_option
    // we want to reverse this for the plain text arena of emails.
    $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);

    $message  = sprintf(__('New user registration on your site %s:'), $blogname) . "\r\n\r\n";
    $message .= sprintf(__('Username: %s'), $user->user_login) . "\r\n\r\n";
    $message .= sprintf(__('E-mail: %s'), $user->user_email) . "\r\n";

    @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), $blogname), $message);

    if ( empty($plaintext_pass) )

    $message  = sprintf(__('Username: %s'), $user->user_login) . "\r\n";
    $message .= sprintf(__('Password: %s'), $plaintext_pass) . "\r\n";
    $message .= wp_login_url() . "\r\n";

    wp_mail($user->user_email, sprintf(__('[%s] Your username and password'), $blogname), $message);


If you are referring to a multisite setup, this is configurable through a template that is set up in the database under 2 sections:

Welcome Email


Welcome User Email


You can customize it to your liking.

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