Mail 4

You're referring to the fourth item in the list of mail-related topics!

Here's a brief overview of the fourth item:

Mail 4: Email

Email is a popular form of electronic mail that allows users to send and receive messages over the internet. It's a widely used communication tool for both personal and professional purposes. Email services like Gmail, Outlook, and Yahoo Mail provide users with a unique address, known as an email address, which is used to send and receive emails.

Some common features of email include:

Email has become an essential tool for both personal and professional communication, and it's widely used in many industries and aspects of life.