diff --git a/lib/features/composer/presentation/composer_controller.dart b/lib/features/composer/presentation/composer_controller.dart
index a62ebfa680..8a0a203acc 100644
--- a/lib/features/composer/presentation/composer_controller.dart
+++ b/lib/features/composer/presentation/composer_controller.dart
@@ -1445,6 +1445,11 @@ class ComposerController extends BaseController with DragDropFileMixin implement
     try {
       if (emailContent == null) return;
       final emailDocument = parse(emailContent);
+
+      final existedSignatureButton = emailDocument.querySelector(
+        'button.tmail-signature-button');
+      if (existedSignatureButton != null) return;
+      
       final signature = emailDocument.querySelector('div.tmail-signature');
       if (signature == null) return;
       await _applySignature(signature.innerHtml);
@@ -1927,6 +1932,7 @@ class ComposerController extends BaseController with DragDropFileMixin implement
 
 
   void handleInitHtmlEditorWeb(String initContent) async {
+    if (_isEmailBodyLoaded) return;
     log('ComposerController::handleInitHtmlEditorWeb:');
     _isEmailBodyLoaded = true;
     richTextWebController?.editorController.setFullScreen();