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@@ -150,7 +150,7 @@ class Body {
         $body = mb_substr($body,strpos($body,$tag),99999999999);
 
         // 有附件的情况
-        preg_match('/boundary="([-_A-Za-z0-9=\.]{1,})"/i',$body,$boundary);
+        preg_match('/boundary="(.*)"/Ui',$body,$boundary);
         if($boundary[0]??''){
             $body = str_replace($boundary[0],'',$body);
 //            $body = mb_substr($body,mb_strpos($body,$boundary[0])+strlen($boundary[0]),99999999999);
@@ -186,7 +186,8 @@ class Body {
             if(!$item) { continue; }
 
             // 邮件体包含邮件体
-            if(preg_match("/boundary=\"([-_a-z0-9]{5,})\"/Ui",$item,$bm)){
+            if(preg_match("/boundary=\"(.*)\"/Ui",$item,$bm)){
+
                 if (strpos($item,$bm[1].'--')!==false){
                     $data = (new self('--'.$bm[1]."\r\n".$item,$this->fileSavePath))->getItem();
 //                    $this->setItem($data);