文檔中沒有「傳送至」欄位。請使用“操作”功能表上的“轉發”。
What happened
The document you tried to mail doesn't have a SendTo field with the recipient name(s). You can only send mail documents, but you can forward any document from any type of application.
What you can do
Choose Actions > Forward and enter the name of the person or group to whom you want to send the document.