1.. Make sure you can sign in with the address you'd like to add. You'll
need to access the other account before Gmail will let you send from it.
Please note: If you'd like to send from another Gmail username, be sure to
sign up for the account first.
2.. Sign in to Gmail.
3.. Click Settings along the top of any page, and open the Accounts tab.
4.. Under Send mail as, click Add another email address.
5.. In the Name field, enter your full name.
6.. In the Email address field, enter the email address you'd like to send
from.
7.. (Optional) When someone replies to a message you sent using a custom
'From:' address, the reply will be delivered to the 'From:' address rather
than your Gmail address. If you'd like replies to be delivered to Gmail or a
third account, you'll need to enter a 'reply-to' address. To do this, click
Specify a different reply-to address and enter the email address you'd like.
8.. Click Next Step >> and then click Send Verification. Gmail will send a
verification message to your other email address to confirm that you own it.
9.. Open your other account and either click the link in the message Gmail
sent or enter the confirmation code in the Accounts section of your Gmail
settings.