Is there any way to add another Gmail account to an existing Gmail mailbox?
For example, my current email address is "[email protected]", and I have another Gmail account under "[email protected]".
I want "[email protected]" to act exactly like "[email protected]". Is it possible?
Actually I have used my current email address for years but I don`t like it. Is it possible for me to change only the email address (my domain name) of my mailbox?
You can not change your Gmail address. You will have to create a new email address, copy all your account data (old mails, contacts, labels, etc.) to your new account and forward any incoming mail to your old account into your new account.
For migration you could use: Gmail Backup and follow the FAQ on migration.
Additionally you should check out this Google Help article for migration of services associated with your account you might not have thought about.
