If you know your old password, use that password to update your existing login keychain: • Open the, which is in the the Utilities folder of your Applications folder. • From the list of keychains on the left side of the window, select 'login.' • From the Edit menu in the menu bar, choose “Change Password for Keychain 'login.' ” • Enter the old password of your user account in the Current Password field. This is the password you were using before the password was reset. • Enter the new password of your user account in the New Password field. This is the password you're now using to log in to your Mac.

Jul 12, 2018 - macOS Keeps Asking for Login Keychain Password. When you change the user account password on High Sierra, macOS creates a new. Got the same problem for all of a sudden for one email account (both incoming and outgoing), and the next day the incoming mail for another mailbox started asking for password as well. Very annoying. As it turned out, the issue is with Mac Mail and the Advanced account option “Automatically detect and maintain account settings”. Best inkjet printer 2012 for mac.
Enter the same password in the Verify field. • Click OK when done, then quit Keychain Access.