diff --git a/src/views/Conversations/Online/Input/EmailEditorPopup.jsx b/src/views/Conversations/Online/Input/EmailEditorPopup.jsx
index a5c68a4..8869643 100644
--- a/src/views/Conversations/Online/Input/EmailEditorPopup.jsx
+++ b/src/views/Conversations/Online/Input/EmailEditorPopup.jsx
@@ -297,14 +297,24 @@ const EmailEditorPopup = ({ open, setOpen, fromEmail, fromUser, fromOrder, toEma
       setFileList(newFileList);
     },
     onPreview: (file) => {
+      // console.log('pn preview', file);
       return new Promise((resolve, reject) => {
         const reader = new FileReader();
         reader.onloadend = (e) => {
-          var dataURL = e.target.result;
+          if (file.size > 1.5 * 1024 * 1024) {
+            message.info('附件太大，无法预览')
+            // message.info('附件太大，无法预览, 请下载后查看')
+            // var downloadLink = document.createElement('a');
+            // downloadLink.href = e.target.result;
+            // downloadLink.download = file.name;
+            // downloadLink.click();
+            resolve(e.target.result);
+            return;
+          }
           var win = window.open("", "_blank");
           win.document.body.style.margin = '0';
           if (file.type.startsWith('image/')) {
-              win.document.write("<img src='" + e.target.result + "' />");
+              win.document.write("<img src='" + e.target.result + "' style=\"max-width: 100%;\" />");
           } else if (file.type.startsWith('text/') || file.type === 'application/html' || file.type === 'application/xhtml+xml') {
               var iframe = win.document.createElement('iframe');
               iframe.srcdoc = e.target.result;
@@ -318,9 +328,9 @@ const EmailEditorPopup = ({ open, setOpen, fromEmail, fromUser, fromOrder, toEma
             win.document.write("<embed  src='" + e.target.result + "' width='100%' height='100%' style=\"border:none\"></embed>");
             win.document.body.style.margin = '0';
           } else if (file.type.startsWith('audio/')) {
-              win.document.write("<audio controls src='" + e.target.result + "'></audio>");
+              win.document.write("<audio controls src='" + e.target.result + "' style=\"max-width: 100%;\"></audio>");
           } else if (file.type.startsWith('video/')) {
-              win.document.write("<video controls src='" + e.target.result + "'></video>");
+              win.document.write("<video controls src='" + e.target.result + "' style=\"max-width: 100%;\"></video>");
           } else {
               win.document.write("<h2>Preview not available for this file type</h2>");
           }