From 5e2155d7e2ea2c9be6d04d3940ef03dcf73a560c Mon Sep 17 00:00:00 2001
From: Yurii <yurikuzn@users.noreply.github.com>
Date: Mon, 23 Feb 2026 15:23:43 +0200
Subject: [PATCH] fix email subject truncate

---
 application/Espo/Core/Mail/Importer/DefaultImporter.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/application/Espo/Core/Mail/Importer/DefaultImporter.php b/application/Espo/Core/Mail/Importer/DefaultImporter.php
index 9bf198d21f..5491120c27 100644
--- a/application/Espo/Core/Mail/Importer/DefaultImporter.php
+++ b/application/Espo/Core/Mail/Importer/DefaultImporter.php
@@ -420,8 +420,8 @@ class DefaultImporter implements Importer
             $subject = '(No Subject)';
         }
 
-        if (strlen($subject) > self::SUBJECT_MAX_LENGTH) {
-            $subject = substr($subject, 0, self::SUBJECT_MAX_LENGTH);
+        if (mb_strlen($subject) > self::SUBJECT_MAX_LENGTH) {
+            $subject = mb_substr($subject, 0, self::SUBJECT_MAX_LENGTH);
         }
 
         return $subject;