Email functions refer to the various features and capabilities that email services provide to facilitate communication. These functions include sending and receiving messages, organizing emails into folders, and using filters to manage incoming mail. Users can also attach files, such as documents or images, to their emails, making it easy to share information. Additionally, email functions often include options for searching through messages, setting up auto-replies, and managing contacts. Many email platforms, like Gmail or Outlook, offer integrated calendars and task lists, enhancing productivity by allowing users to schedule events and reminders directly from their inbox.