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@@ -493,3 +493,20 @@ function get_email_uuid($subject,$udate,$form,$to,$size){
 }
 
 
+/**
+ * 转码
+ * @param string $str
+ * @param string $to
+ * @param string|null $from
+ * @return string
+ * @author：dc
+ * @time 2024/8/29 10:51
+ */
+function mb_iconv($str, $to, $from = null) {
+    try {
+        return mb_convert_encoding($str, $to, $from);
+    }catch (Throwable $e){
+        return $str;
+    }
+}
+

@@ -504,7 +504,7 @@ class Mail {
                 if(!$description && in_array($item['type']??'',['text/html','text/plain'])){
 
                     if(!empty($item['charset'])){
-                        $value = @iconv($item['charset'],'utf-8',$item['body']);
+                        $value = mb_iconv($item['body']?:'','utf-8',$item['charset']?:null);
                         $value = $value ? $value : $item['body'];
                     }else{
                         $value = $item['body'];