To have information, such as your name, site, job title, or slogan, automatically added to the end of all of your messages, you can create a signature. (Avoid cutesy pictures or sayings as they become tiresome rather quickly.)

To set up a signature:

1. Choose Options from the Tools menu.
2. On the Mail Format tab, click the Signatures... button.
3. In the Create Signature pop-up box, click New....
4. Enter a name for the signature and click Next.
5. Type your information in the text box. Pressing Font... button lets you customize the font and appearance of selected parts of the text. When you are done, click Finish.
6. Click OK in the Create Signature dialog box.
7. Check that the name of the signature you want to automatically use is shown in the box next to Signature for new messages: and click OK.

Note that another option on the above menu lets you set up a different (probably much shorter) signature for use when replying to or forwarding messages.

Now when composing a new message, your default signature will automatically appear at the bottom of the message as you type it. You can use your mouse to move down to where that signature appears and alter or delete it if desired.