Customers do frequently wish to connect their email accounts. Owing to the large number of online transactions, they always having multiple accounts and then managing and segregating transactions from one account to another. In order to facilitate the same, the user can log in to his or her primary account, and from there move on to other Gmail accounts by adding account and then providing with the necessary credentials. On doing so, from the next time (if there is no log out done), all the joined email accounts would show on the top right hand side icon, and the user can just click on the required account to use the corresponding mail box.
Check Out :- http://www.gmail-customer-service.com/gmail-technical-support.html