Roundcube is a free, open-source webmail client that gives you a modern, browser-based interface for reading and sending email on your own hosting account. It suits individuals and businesses that want full-featured webmail without relying on a third-party mail app.
Roundcube is a browser-based email client. It connects to an existing mailbox through IMAP, allowing you to read, send, organise and search email from a web browser. You do not need to install a desktop programme or mobile application.
The software is open source and licensed under the GNU General Public Licence. The official Roundcube website lists version 1.7.3 and highlights features including drag-and-drop message management, threaded conversations, contact management, spell checking and responsive access.
Roundcube itself is free. However, you still need a hosting account or email server to run it. With Zest City Web Hosting, the app can be installed through the hosting platform without purchasing a separate webmail licence.
| Area | Roundcube position as of 2026 |
|---|---|
| Software cost | Free and open source |
| Access | Web browser on desktop, tablet or mobile |
| Email connection | Existing IMAP mailbox |
| Best suited to | Individuals, small businesses and hosted email users |
| Hosting requirement | Yes, unless provided by an email or hosting service |
A familiar browser-based inbox : Roundcube gives you a practical interface with folders, message lists and a reading panel. It feels closer to a traditional email client than a basic hosting control-panel mailbox, which makes the transition easier for most users.
Powerful message organisation : You can create and manage folders, move messages with drag and drop, mark items and view threaded conversations. This is useful when you need to separate customer enquiries, invoices, newsletters and internal messages.
Rich-text email composition : The composer supports HTML messages, attachments, signatures and multiple sender identities. You can write professional emails from a browser without opening Outlook or another installed application.
Address book and contact tools : The built-in address book supports contact groups, vCard import and export, and find-as-you-type suggestions when composing. These features reduce typing errors and make repeat communication more efficient.
Responsive and extensible design : The responsive interface works across different screen sizes, while the plug-in API allows hosting providers and administrators to add further functions. Themes and extensions can also help organisations adapt the interface to their own needs.
A useful detail for small businesses is that Roundcube focuses on email rather than trying to replace every business application. That narrower purpose can be an advantage when you simply want dependable access to your hosted mailbox.

Example scenario: A business owner receives enquiries through a branded email address such as sales@example.co.uk. They use Roundcube in a browser to read messages, move completed enquiries into folders and reply using a saved signature.
This keeps business communication separate from a personal Gmail or Outlook account. It also means the owner can access the same mailbox from a home computer, office laptop or tablet.
Example scenario: A small team uses a shared mailbox for customer support. Team members organise messages into folders, use conversation view to follow replies and apply agreed processes for handling enquiries.
Roundcube can work well in this situation when the underlying IMAP server is configured correctly. Shared folders and access-control features may be available, although the exact permissions depend on the hosting and mail-server setup.
Example scenario: A consultant is away from the office and needs to check a client message on a borrowed computer. They open the webmail address, sign in securely and respond without configuring a new email application.
This is one of the clearest benefits of browser-based webmail. It provides access without leaving a local email profile on the device. Users should still avoid saving passwords on shared computers and should sign out when finished.
It depends on your hosting and mail configuration : Roundcube is the interface, not the complete email service. Delivery, spam filtering, mailbox storage, authentication and server reliability are managed by the hosting or email provider. If those systems are poorly configured, changing the webmail interface will not solve the underlying problem.
Some advanced functions require extensions : Features such as calendars, two-factor authentication, extra account management and automated rules may depend on plug-ins or server support. This gives administrators flexibility, but it can make setup and maintenance more technical.
It is not a full collaboration platform : Roundcube is designed for email and contacts. It does not provide the wider document editing, team chat, shared calendars and productivity ecosystem found in services such as Microsoft 365 or Google Workspace.
These limitations do not make Roundcube unsuitable. They simply show where it fits best: as a capable webmail front end for an existing hosted email service.
SquirrelMail : SquirrelMail is another open-source webmail client in Zest City’s 79-app library under the Webmail category. It is lightweight and established, but its interface is more dated and less visually polished than Roundcube.
Gmail or Outlook on the web : These hosted clients are part of wider cloud services and normally include integrated storage, calendars, contacts and collaboration tools. They are more convenient for organisations wanting a complete productivity suite, but they provide less direct control over the hosting environment and branding.
Create folders before your inbox becomes crowded : Set up a simple structure for sales, customers, finance, suppliers and follow-up messages. Use a small number of useful folders rather than creating a separate folder for every sender.
Set up identities and signatures carefully : If you manage more than one business address, configure the correct sender name, reply-to address and signature for each identity. Send a test message to yourself before using a new identity with customers.
Use strong account security : Choose a unique password, enable multi-factor authentication if your provider supports it, and keep your browser and device updated. Avoid accessing sensitive business email over untrusted public networks unless you are using a secure connection.
You should also review your mailbox regularly. Delete unwanted messages, empty the bin when appropriate and archive older correspondence according to your business and legal requirements. A tidy mailbox is easier to search and less likely to reach its storage limit.

Roundcube is one of 79 apps available free with Zest City Web Hosting : included on every shared hosting programme and platform we offer, with genuine 1-click installation (no server admin, no manual setup, live in minutes). No extra licence fees, no separate app-store account.
With Zest City Web Hosting, you can install Roundcube through the hosting platform as part of your hosting setup. That removes much of the technical work involved in downloading files, creating databases and configuring a webmail installation manually.
The software remains free, while your hosting plan provides the server space and email environment it needs. If your website also needs a visual refresh, Zest City can support the wider project through its website design services.
Yes. Roundcube is free, open-source software with no official subscription, per-user charge or paid edition. You may still pay for the hosting or email service that runs it, because those costs are separate from the software.
Roundcube can be opened in a modern web browser on a desktop computer, laptop, tablet or mobile device. Access depends on your hosting provider, internet connection and mailbox configuration, so the webmail address and security settings should be confirmed with your provider.
Roundcube is a sensible option for businesses that need straightforward access to hosted domain email. It supports folders, search, contacts, signatures, attachments and multiple identities, but it does not replace a complete collaboration suite with integrated documents, meetings and team chat.
Roundcube can support multiple sender identities, allowing one mailbox to send from different configured addresses. Accessing completely separate mailboxes at the same time may require a suitable plug-in or separate browser sessions, depending on the hosting configuration.
Not sure Roundcube is the right fit : or want to see the other 78 apps you get free? Talk to Zest City about your web hosting and we'll help you pick the right app, the right hosting plan, and show you what else we can do for your site, from design to ongoing support.
#AIinBusiness (79) #AudienceEngagement (184) #CareerGrowthOpportunities (35) #CareerSuccess (98) #corporateidentity (21) #DigitalEventProfessionals (40) #DigitalEvents (121) #DigitalMarketing (216) #DigitalTechnologyImpact (129) #ElevateYourOnlinePresence (96) #EventMarketing (50) #EventTech (73) #HRManagement (54) #JobSeekingTips (20) #ProfessionalGrowth (209) #ProfessionalSkills (34) #RecruitmentStrategies (51) #ReliableHostingSolutions (18) #SoftSkillsMatter (35) #SuperiorWebHosting (19) #TimeManagement (46) #VirtualEvents (50) #webhosting (18) #WebHostingExperts (24) #WebinarSuccess (78) #websitedesign (54) #WorkLifeBalance (86) CareerSuccess (49) worklifebalance (25) Zest City one-click apps (35)
| Cookie | Duration | Description |
|---|---|---|
| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |