Index: wp-login.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- wp-login.php	(revision aa71d8b7ffbe56a064b19987a8aae0e787b1c8e5)
+++ wp-login.php	(revision )
@@ -319,12 +319,25 @@
 		return $key;
 	}
 
+	$reset_password_url = network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login');
+
+	/**
+	 * Filter the reset password url
+	 *
+	 * @since 4.4.0
+	 *
+	 * @param string  $reset_password_url      Reset password url
+	 * @param string  $key Password reset key
+	 */
+
+	$reset_password_url = apply_filters( 'reset_password_url', $reset_password_url, $key );
+
 	$message = __('Someone has requested a password reset for the following account:') . "\r\n\r\n";
 	$message .= network_home_url( '/' ) . "\r\n\r\n";
 	$message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
 	$message .= __('If this was a mistake, just ignore this email and nothing will happen.') . "\r\n\r\n";
 	$message .= __('To reset your password, visit the following address:') . "\r\n\r\n";
-	$message .= '<' . network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') . ">\r\n";
+	$message .= '<' . $reset_password_url . ">\r\n";
 
 	if ( is_multisite() )
 		$blogname = $GLOBALS['current_site']->site_name;