Yahoo Mail Launches two new domains Rocketmail and Ymail.Rocketmail was one of the very first free Webmail services, acquired by Yahoo in 1997 ($80 million).And then Yahoo lauched Yahoo Mail based on RecoketMail technology.
Now Yahoo mail has three domains Yahoo,RocketMail and Ymail.Yahoo take this step to lauch new domains because e-mail demand is growing day by day.
So,now just create e-mail address in yahoo as you wish.