Electronic Mail ( E-Mail)
Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic (digital) version of, or counterpart to, mail, at a time when "mail" meant only physical mail (hence e- + mail). Email later became a ubiquitous (very widely used) communication medium, to the point that in current use, an e-mail address is often treated as a basic and necessary part of many processes in business, commerce, government, education, entertainment, and other spheres of daily life in most countries. Email is the medium, and each message sent therewith is called an email (mass/count distinction).
Email operates across computer networks, primarily the Internet, and also local area networks. Today's email systems are based on a store-and-forward model. Email servers accept, forward, deliver, and store messages. Neither the users nor their computers are required to be online simultaneously; they need to connect, typically to a mail server or a webmail interface to send or receive messages or download it.
Originally an ASCII text-only communications medium, Internet email was extended by Multipurpose Internet Mail Extensions (MIME) to carry text in other character sets and multimedia content attachments. International email, with internationalized email addresses using UTF-8, is standardized but not widely adopted.
Email Address
- Each user of email is assigned a unique name for his email account. This name is known as E-mail address.
- Different users can send and receive messages according to the e-mail address.
- E-mail is generally of the form username@domainname.
- The username and domain name are separated by @ (at) symbol.
- Email addresses are not case sensitive.
- Spaces are not allowed in e-mail address.
E-mail Massage Components
Gmail's E-mail
Gmail is a free email service provided by Google. As of 2019, it had 1.5 billion active users worldwide.
A user typically accesses Gmail in a web browser or the official mobile app. Google also supports the use of email clients via the POP and IMAP protocols.
At its launch in 2004, Gmail provided a storage capacity of one gigabyte per user, which was significantly higher than its competitors offered at the time.
Today, the service comes with 15 gigabytes of storage. Users can receive emails up to 50 megabytes in size, including attachments, while they can send emails up to 25 megabytes.
In order to send larger files, users can insert files from Google Drive into the message.
Gmail has a search-oriented interface and a "conversation view" similar to an Internet forum.
The service is notable among website developers for its early adoption of Ajax
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