Email is short for 'electronic mail'. Similar to a letter, it is sent via the internet to a recipient. An email address is required to receive email, and that address is unique to the user. Some people use internet-based applications and some use programs on their computer to access and store emails.
It's quick – your recipient receives your email as soon as they go online and collect their mail.
It's low cost.
Photos, documents and other files can be attached to an email, so that more information can be shared.
One email can be sent to more than one recipient at a time.