You can add attachments at any time while you’re composing an email.

Here’s how to do it:

1. Click Attach Files—it’s below Subject:.
2. In the window that opens, click Browse to find and select the file or photo you want.
3. When you've got it, click it, then click Open.
4. Click Attach Files again to inititate the upload of the file.
5. Once the upload is completed, click the Continue to Message button.
6. Repeat these steps to attach more files.

Nice work. Look at you—adding attachments!

You can send many types of files as attachments, including word processor or spreadsheet documents, audio files, image files (.bmp, .jpg., .gif, etc.), web pages saved as HTML files, and more. You can add multiple attachments up to a sum total of 10MB to any email message.

If you'd like to be able to send and receive larger messages with attachments, check out Mail Plus. With Yahoo! Mail Plus, you can send and receive messages up to 20MB in size.