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@@ -10,6 +10,7 @@
         "ext-mbstring": "*",
         "ext-json": "*",
         "ext-iconv": "*",
+        "ext-imap": "*",
         "phpmailer/phpmailer": "^6.7"
     },
     "require-dev": {

@@ -258,7 +258,9 @@ class Body {
                         }
                         case '8bit': {
                             try {
-                                $data['body'] = DeCoding::de8bit($data['body']);
+//                                $data['body'] = DeCoding::de8bit($data['body']);
+                                // 暂时没有替换 imap_8bit的函数
+                                $data['body'] = imap_8bit($data['body']);
                                 $data['body'] = quoted_printable_decode($data['body']);
                             }catch (\Throwable $e){