Webmail: your inbox in a browser.
Webmail is the browser interface to an email service. You do not need to configure a desktop client to use it, but the mailbox still lives with a provider or on a server someone operates. The browser is the way in.

- Access method
- Web browser
- Account settings
- Managed by your provider
- Local traces
- Downloads and browser data
- Before you leave
- Sign out explicitly
Know which mailbox you are opening
Bookmark the provider’s verified webmail address. When you use a custom domain, the login page may belong to your email host rather than your registrar. Confirm the destination before entering credentials, especially if you arrived through an unexpected message.
The browser view can help you check which messages still exist on the server when a desktop app behaves differently. It may also expose provider filters, blocked-sender settings, storage limits, and forwarding rules that do not appear in your mail client.
Make everyday actions predictable
Learn how the interface handles Archive, Delete, Spam, and moving messages between folders. Confirm what happens to a message before selecting a large batch. If another device uses IMAP synchronization, those changes may show up there too.
Check the From identity before replying, particularly when several addresses deliver into one mailbox. An alias receiving a message does not automatically prove that the provider permits you to send as that alias. Also check attachments after upload and look for a saved Sent copy after sending.
Treat the session and the device separately
Signing out ends a webmail session according to the service’s behavior, but it does not remove attachments you downloaded. On a shared computer, avoid saving passwords, review downloaded files, and explicitly use the logout control. A private browsing window is not a guarantee that the device itself is trustworthy.
For a computer you use regularly, compare the convenience of webmail with an app that offers verified offline downloads. The webmailer guide explains how an interface differs from the hosting behind it, including what to check if you plan to run your own.
Roundcube’s browser interface and logout overview
Questions about webmail
Is webmail the same thing as IMAP?
No. Webmail is a browser interface, while IMAP is a protocol used to access mailbox data. A webmailer can use IMAP behind the interface, but you do not configure that connection in your browser.
Does webmail work offline?
Only if the particular service and browser support the required offline features and the content has been saved. Verify that behavior rather than assuming a loaded page is a complete archive.