What is an email client?

An email client is a software application specifically designed for accessing and managing a user's email. It allows individuals to send, receive, and organize their email messages, manage contacts, and often includes features such as scheduling and task management. Email clients can be standalone applications like Microsoft Outlook or can also be web-based, such as Gmail accessed through a web browser. The main function of an email client is to facilitate communication via email efficiently and effectively, providing users with a range of tools to manage their email accounts.

The other options describe different types of software or tools that serve unrelated purposes, thus clarifying why they do not accurately define an email client.