email_exists

The email_exists function is typically used in email validation or verification processes. It checks whether a given email address is already registered or exists in a database.

Example Usage:

def email_exists(email):
    # Check if the email exists in the database
    if email in database:
        return True
    else:
        return False

Notes:

• This is a simple example and not secure for real-world applications.
• For secure email validation, you should use a proper email validation service or library (e.g., validate_email in Python).
• Always ensure you have proper input validation and error handling.

Would you like a more secure or feature-rich implementation?