I believe the check mark at sign-in only keeps a user logged in for 2 weeks. Then, it auto logs you off the site and you have to sign in again.
Yes, we can deactivate a yahoo mail account.
there is no master password for yahoo mail account
You can get a Yahoo! Mail at the link below -
No you cannot do like that ever. You need to have a Gmail account in order to sign in into that. Yahoo accounts signs you into yahoo mail.
you get a account
yahoo mail
fax from yahoo
You have probably set the account to a receiving-only mail in the account settings. Or Yahoo may have blocked you from sending mail due to spamming.
not open my yahoo mail account
You have to first have a yahoo mail account and then you download yahoo messenger you can get it at: http://messenger.yahoo.com/ Then, you sign in your yahoo mail username for your messenger username and the same way for you password.
From yahoo mail click options and select 'Switch to Yahoo Mail! Classic'.
A Yahoo Mail account does two things. First and foremost, it enables the user to have a free email account to send and receive mail online. Second, it allows the account holder access to all things on the Yahoo portal. Their games, Yahoo messenger, and other items are accessible with an account.