How can I get capital letters to show in my email address?

When I send an email, I would like my address to be displayed with some capital letters, like this:

ThisAddyHasSomeCapitals@blah.

It makes it easier to read, and will match my business cards. I want this to show in the "From" line of my outgoing messages. I created my Yahoo address that way, but it didn't come out that way.

you cant in the email addres
CHANGE WHO FROM IN EMAILS YOU SEND

ADD EMAIL ADRESS'S ETC

READ ALL THIS INFORMATION BEFORE YOU DECIDE

CHANGE WHO FROM INFORMATION
Click on the Options link in the right corner of your yahoo mail page.
Click on General Preferences.
at the top in the from and reply to fields
change the name and or change email address to reply to
you can change name to anything
email address"s must be valid to recieve a reply
after you change info
Go to the bottom of the page and click the "Save" button.
send email to your self to test
MORE INFORMATION
http://help.yahoo.com/l/us/yahoo/mail/or...
FOR BETA
click Options
Mail Options
and select Accounts
click the Edit button
In the General Preferences
type in what you want
Click Save

YOU CAN NOT DELETE PRIMARY EMAIL ADDRESS OR PRIMARY USER NAME
BUT YOU CAN ADD ANOTHER EMAIL ADDRESS

MORE INFORMATION
http://help.yahoo.com/l/us/yahoo/mail/or...
ADD ANOTHER EMAIL ADDRESS
Click Options in the upper-right corner of your Mail page.
Under 鈥淢anagement鈥? click Mail Addresses.
In the 鈥淓xtra Email Address鈥?section, click Get Started.
Either type whatever new address you鈥檇 like or use a suggestion on the right.
CREATE NEW EMAIL ACCOUNT
https://edit.yahoo.com/registration?.int...

use cap lock