What Is Webmail?
Reading Email in a Web Browser
What is webmail? It is an email interface that runs in a web browser. You open a web address, sign in with your email address and password, and read, write and organize messages on a web page. The messages stay on the mail server, and the browser only displays them.
Many email hosting plans include a webmail application such as Roundcube, and large providers run their own versions. Because webmail is an ordinary website, it works on almost any computer or device with a browser, and nothing needs to be installed. This makes it useful when you are traveling, using a borrowed computer, or checking mail before your own devices are set up.
How Webmail Differs From Email Clients
An email client is a program installed on a computer or phone, such as Thunderbird, Apple Mail or a mobile mail app. A client usually keeps a local copy of messages, so it can work offline, and it often offers rules, multiple accounts and fast search across a large archive. Webmail depends on a connection to the server for nearly every action.
Both approaches reach the same mailbox. Clients connect using standard protocols: IMAP or POP3 to receive mail and SMTP to send it. A webmail page talks to the server over an encrypted HTTPS connection and handles those tasks for you. If the mailbox keeps messages on the server, a message you move into a folder in webmail usually shows up in that folder on your phone too. The differences between the two receiving protocols are covered in POP3 vs IMAP.
Checking Work Mail From a Borrowed Computer
A freelance designer is visiting a client's office and needs to send a file from her business address. Her laptop is at home, and the office computer has no mail program set up. She opens the webmail page for her domain, signs in and sends the message from the browser. No mail is copied to the office computer, and the sent message appears in her folders when she gets home.
Before leaving, she signs out. On a shared machine this matters, because a browser may keep the session open for the next person.
Frequently asked questions
Is webmail secure?
Webmail can be as secure as other access methods when it uses an encrypted HTTPS connection, which most providers require. The main risks are practical ones: signing in on a shared or untrusted computer, or leaving a session open. Use a strong, unique password, sign out on shared devices, and turn on two-factor authentication if your provider offers it.
Can I use webmail and an email app for the same account?
Yes. Most accounts let you use webmail alongside one or more desktop or mobile clients, and all of them read the same mailbox on the server. Problems usually come from settings. A client set to POP3 that removes messages after download can take mail out of the mailbox you expected to see in webmail.