A computer file that rides along with an email message. Attachments are widely used to transfer photos and documents to another party. However, very large files and executable files are generally ...

Multiple Attachments is clever in that it works with the Open In menu itself and Apple’s Mail app. Every time you need to send a message with multiple files in it, you can send one file at a time to ...

You can use the links on this page to test how your email service or application deals with different kinds of file attachments sent to you using different formats from a Macintosh email program.