Email (short for "electronic mail") is a method of exchanging digital messages between people over the internet or a computer network. Each user has a unique email address, and messages — which can include text, links, images, and file attachments — are sent from one address to another almost instantly, then stored in the recipient's inbox until they read them.
Email definition & meaning
The word email comes from electronic mail. In simple terms, it is the digital equivalent of sending a letter: instead of paper and a postal address, you use a typed message and an email address, and delivery takes seconds instead of days. Email is asynchronous (the recipient does not need to be online when you send it) and store-and-forward (mail servers hold the message until it can be delivered).
How email works
When you send an email, your mail program hands it to an outgoing mail server using a protocol called SMTP (Simple Mail Transfer Protocol). That server looks up the recipient domain's mail servers (its MX records) and delivers the message to the recipient's incoming mail server. The recipient's app then retrieves it using IMAP or POP3. The whole journey usually takes a few seconds.
The parts of an email address
Every email address has the form local-part@domain — for example [email protected]:
Types of email
- Webmail — read in a browser (Gmail, Outlook.com, Yahoo Mail).
- Client-based / business email — accessed via an app or a company domain over IMAP/POP3.
- Disposable / temporary email — a throwaway address that receives mail for a short time, used to sign up for sites without exposing your real inbox. You can get a free temporary email address here in one click.
Why email still matters
Email remains the backbone of online identity: it is how you register for almost every website, receive verification codes and receipts, reset passwords, and get notifications. Because it is so central, protecting it matters — using a burner email for untrusted sign-ups keeps spam and data-breach exposure away from your primary inbox, and you can verify whether any email address is valid before you rely on it.
Frequently asked questions
What does email mean?
Email means "electronic mail" — digital messages sent between email addresses over the internet, delivered to the recipient's inbox in seconds.
What is an example of an email address?
An email address looks like [email protected], for example [email protected]. The part before the @ is the mailbox name; the part after it is the provider's domain.
Who invented email?
The first networked email was sent by Ray Tomlinson in 1971, who also chose the @ symbol to separate the user from the host. Modern email standards developed through the 1970s and 1980s.
What is a temporary or disposable email?
A temporary (disposable) email is a throwaway address that receives messages for a short time so you can sign up or verify without giving out your real address. You can create one free here.
Is email free?
Yes — most personal email is free, including major webmail providers and free temporary email services. Business and custom-domain email is usually paid.
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