From 14e3614d45e8990507b9ee9a4c81a20f01b69a1e Mon Sep 17 00:00:00 2001
From: Jimmy Huang <jimmy@netivism.com.tw>
Date: Wed, 13 Mar 2024 14:59:19 +0800
Subject: [PATCH] refs #39444, fix file not being created when no verified
 external file exists

---
 CRM/Utils/Mail.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CRM/Utils/Mail.php b/CRM/Utils/Mail.php
index f0d23b393..1bddff8b1 100644
--- a/CRM/Utils/Mail.php
+++ b/CRM/Utils/Mail.php
@@ -602,6 +602,7 @@ public static function validDKIMDomainList($externalOnly = FALSE, $saveFile = NU
     if ($saveFile) {
       $confPath = CRM_Utils_System::cmsRootPath().DIRECTORY_SEPARATOR.CRM_Utils_System::confPath().DIRECTORY_SEPARATOR;
       $savePath = $confPath.basename($saveFile);
+      $existsDomains = array();
       if (file_exists($savePath)) {
         $existsList = file_get_contents($savePath);
         $existsDomains = explode("\n", $existsList);