| Avoiding Computer Viruses | Receiving Attachments | Opening and Saving Attachments | Sending Attachments |
You can send all types of files as attachments, including word processor or spreadsheet documents, audio files, image files (such as .bmp, .jpg, .gif), and more.
Notes:
With Yahoo! Mail, effective email virus protection is automatic.
Anti-virus software in Mail automatically detects and cleans viruses
in incoming and outgoing email and attachments.
Be aware, however, that not all viruses can be detected
and cleaned. There is a risk involved whenever you download email
attachments to your computer or send email attachments to others.
As provided in the Terms of Service, neither Yahoo! nor its
licensors are responsible for any damages caused by your decision
to do so.
While composing a message, click the Attach
Files button. (You can attach files at any time before sending
the message.) 

The Attach Files page opens.
Click the first Browse button.

The Choose File or Open File window opens (depending on your operating system).
Locate the file you want to attach, select it, and click the Open or OK button.
The selected file and its location appear in the first attachment box.
To attach more files, click the next Browse button, and repeat step 4.
Tips:
You cannot attach the same file multiple times to the
same email message.
If you need more attachment boxes, click the Attach
More Files link. Yahoo! Mail adds another box.
You can attach up to 50 files with a total combined size
of 25 MB.
When all the files you want to send are listed, click the Attach Files button.

Tip: Norton AntiVirus™ automatically scans all outgoing email attachments and will not let you attach an infected file.
Progress bars display the process of scanning and attaching each file. When the process is complete, the Compose page opens with the attached file.

Note: Though Yahoo! Mail often displays attached photos within the messages you receive, it doesn’t display the photos you attach while composing your message. Instead, it lists the photos in the attachments area. The photos may appear within the text of the message when your recipients receive it if their email applications support embedded photos.
If you want to remove an attachment before sending the email message, click the Remove link to the right of the attachment label.
