You can configure the "From" name (the name displayed to recipients of your email messages) and return email address (the address that replies to your email messages will be sent) by following these steps:

1. Log in to your Yahoo!7 Mail account.
2. Click the "Mail Options" link located near the upper-right area of the Yahoo!7 Mail page.
3. Click the "General Preferences" link in the middle column.
4. In the From Name box, enter your name exactly as you would like it to appear in the "From:" line of your outgoing messages.
5. If you leave the Reply-To: field blank, your Yahoo!7 Mail address will automatically be included as the return address of your outgoing messages. If you would like a different return address to be included, enter it in the Reply-To: field.
6. Click the "Save" button to put your new settings into effect.

Please note: You must enter a From Name. If it's left blank, the previous entry will be restored, and your changes won't be saved.

The Name field cannot contain special characters, such as the "@" symbol. Additionally, the address in the Reply-To: field cannot exceed 40 characters.