Learn how to write and send an email with an attachment, and review our tips and examples to help you prepare your own email. Here are 10 effective email templates for emails with attachments to make your communication more impactful and efficient.Note: You may only attach up to 10 pages. To attach a file to your message, in the Files section, you can drag and drop a file there or click Upload Files to launch a dialog box to select your files. On this page below is a list of LOCAL forms that can be completed online and then printed. The form you need may be in this list. Attachment Type - Some agencies require specific attachment types to be included in the application.