WordPress at a glance
filter is not described

wpmu_welcome_user_notification filter-hook . WP MU

Filters whether to bypass the welcome email after user activation.

Returning false disables the welcome email.

Usage

add_filter( 'wpmu_welcome_user_notification', 'filter_function_name_3628', 10, 3 );
function filter_function_name_3628( $user_id, $password, $meta ){
	// filter...

	return $user_id;
}
$user_id(int)
User ID.
$password(string)
User password.
$meta(array)
Signup meta data.
Default: empty array

Notes

  • Since MU (3.0.0)

Where the hook is called

wpmu_welcome_user_notification()
wpmu_welcome_user_notification
wp-includes/ms-functions.php 1656
if ( ! apply_filters( 'wpmu_welcome_user_notification', $user_id, $password, $meta ) )

Where the hook is used (in WP core)

wp-admin/user-new.php 157
add_filter( 'wpmu_welcome_user_notification', '__return_false' ); // Disable welcome email