What is an Email Client ?

The email client is a program that allows the configuration of one or more email addresses to compose, send, receive and read emails from this email address through the desktop interface. Emails usually contain text, but nowadays media and other types of files can be attached as well. When an email is sent, it goes to a remote computer, such as an email server, and is stored there until the recipient of the email goes online and verifies it.

An email address is required to send and receive emails. Each email consists of three parts:

  1. Username: This can be anything but following the guidelines set by the email provider.

  2. Domain Name/Host: This is the mail server where the message will be stored. It can be @gmail, @Outlook, etc.

  3. Domain Type – Indicates whether a given email address is business like .com or educational .edu and other custom type.

For ex- person@gmail.com is an email address, it has three parts: person is a username, @gmail shows a domain name, and .com shows a domain type.

What Can We Do With an Email Client ?

You can read, organize and reply to messages and send new emails with the email client. Email clients often offer folders, labels, or both to organize emails. An integrated search engine allows you to find messages based on details such as sender, subject, time received, and content.

Email clients also handle attachments, allowing you to send & receive computer files (such as images, documents or spreadsheets) via email.

What’s Email System ?

A complete system is formed with three things:

  • Email Client

  • Mail Transfer Agent

  • Mail Delivery Agent

How Does an Email Client Communicate With Email Servers ?

Through email servers, Email client can use a number of protocols to send and receive email. Messages are stored locally on your computer (usually when using POP to download emails from the server) or emails and folders are synced with the server (usually when using IMAP & Exchange). With IMAP & Exchange, email clients accessing the same account see the same messages and folders and all actions are automatically synchronized.

To send email, Email clients almost exclusively use SMTP. (With IMAP accounts, the sent message is usually copied to the Sent folder and can be accessed by email clients.)

There are also other email protocols. Some email services provide APIs (Application Programming Interfaces) for email clients to access emails on their servers. You can also provide additional features such as delayed delivery or temporary retention of email through these protocols.

Are Web Browsers Email Clients ?

Browsers become email clients with web-based applications that access email on a server.

For ex- when you access Gmail in Mozilla Firefox, it acts as your email client. You can use it to read, send, and organize messages. The protocol used to access email in this case is HTTP.

Can Automated Software Be an Email Client?

Technically, any software program that accesses email on a server using IMAP, POP or a similar protocol is an email client. Therefore, any software that automatically processes incoming emails can be called an email client (even if no one can see the messages), especially in relation to the email server.

What are the Common Email Clients ?

Some of the popular email clients are as follows:

Microsoft Outlook, Mailbird, Mozilla Thunderbird, macOS Mail, IcrediMail, Mailbox and iOS Mail.

The most famous web-based email client is Gmail; Others include Outlook.com and Yahoo Mail.

Eudora, Lotus (and IBM) Notes, Pine, nmh and Outlook Express are historically important email clients.

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