Charter communications provides some extra feature like if you want your name to be appearing on your outgoing mails, you can enroll your name in the “Preferences” part of your email account. Also you can find out what addresses and email messages you need to save automatically. Next you can create an away message or an email signature through “Personalization” and you set up an extra account through “Parental Controls.” in the “Family Mailbox”. You can also determine rules for return receipts, filtering and more.

Also read this info - https://emailscrunch.com/charter-spectrum-email-login/