In the next window, you enter the password to login to the Yahoo! Mail it, then click the Continue button. In the next dialog box, you should keep the checkmark at all items: Import contacts (transfer contacts to Gmail), Import mail (transfer mail to Gmail), Import new mail for next 30 days (Gmail will automatically move the latest newly received messages from the old mailbox within the next 30 days), Add label to all imported mail (add labels to the front of the message titles to be easily distinguished).
Done, click the Start Import button> OK to activate the mail transfer and contacts process. This still silently happens even if you log out of your current Gmail mailbox.
Depending on the number of mail and contacts in the Yahoo! Mail, mail delivery can take several hours to two days. Completed, you will see a small notification above your Gmail mailbox interface.
Note : According to the test, mail transfer is only valid for the address with Yahoo! Mail in the form of @ yahoo.com, and email in the form of @ yahoo.com.vn is not yet available .