We’ll take a copy of any emails you have in another account and put them in a new folder in your Yahoo! Mail account. (We promise not to
drop or scratch anything valuable).
We can also copy over your contact list and calendar. So everything you had in another account will be duplicated in your Yahoo Mail.
Just like home.
Finally, you have the option to let us automatically tell all the contacts from your other account about your Yahoo! address. Expect those “inbox warming” mails to flood in.