| Overview | Adding Another Account | Editing an Account | Sending Mail Using Another Email Address | Retrieving Email From Another Account | Deleting an Account |
When you added your new account, you provided the basic information that allows Yahoo! Mail to send email using the external account’s email address. You may have also provided the information needed to retrieve email from the account. With the exception of the account’s email address, you can update this information and indicate a few other options by editing the account.
Open the Mail Accounts page in Yahoo! Mail. (Remind me how.)
Select the mail account that you want to edit, then click the Edit button.

On the Edit Account page, make changes to the current settings, then click the Save Changes button.
The account can include the following optional information:
Reply To—You can provide a different email address that Yahoo! Mail should use as the reply to address when sending messages using this account’s email address. Replies to messages from this account will be sent to the Reply To address.
Deliver To—When Yahoo! Mail retrieves email from this account, it delivers the messages to your Inbox unless you choose a different mail folder from the Deliver To menu. 
Options—Use these options if Yahoo! Mail is retrieving messages from the account:

The new settings take effect immediately.