As of now, you can only add one email address per Unroll.me account.
Although, you can create as many Unroll.me accounts as you'd like!
Here's how to add multiple Unroll.me Gmail/Google Apps accounts:
- Activate Gmail Multiple Sign-in
- Once you've done this, logout of Unroll.me
- When you log back in, you'll be able to choose which account you'd like to sign in with
Here's how to add multiple Yahoo Mail, AOL Mail, Outlook, MSN, Hotmail, Live Mail, and iCloud accounts:
- Logout of Unroll.me
- Sign up again
- Enter your new email address and follow the steps