Are you looking for a way to make your emails look more professional? Did you encounter an error while adding a signature to an AOL email? The email signature helps your contacts to recognize that you are the sender of an email. The email signature is a way to personalize your emails before sending them out. When you find that you are unable to add a signature to your emails, you can call the AOL support and ask for additional help. Email experts are available 24 hours a day to help resolve any error related to your account.