Atmail Cloud

5.5easy start · #137of 143
in Email clients

Free trialno
Well documentedno
Runs where you workno

Runs on Android, api, iOS, Linux, Mac, Web, Windows.

Atmail Cloud is ranked #137 of 143 in email clients on The Geeks Club. It runs on Android, API, iOS, Linux, macOS, Web, Windows. A free trial is offered.

Compared on email clients

App coverage: web
Unified inbox: Yes
Calendar tools: Yes

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The record

Product: Atmail Cloud is a hosted email service that Atmail operates so customers can focus on their core business.
Intended customers: Atmail says it serves telcos and service providers worldwide, including providers on every continent.
White labeling: The service supports white labeling, including per-domain branding with a customer’s logo and colors.
Webmail features: The webmail interface includes email, contacts, tasks, calendars, and files.
Integrations: Users can connect Gmail, Outlook, Yahoo, and other IMAP accounts, and attach files from or save them to Dropbox, Google Drive, and Microsoft OneDrive.
Admin API: Atmail describes a documented open admin API for integrating with business systems to provision and monetize users and domains.
Protocols: Atmail says its system is compatible with third-party applications based on IMAP, POP, or DAV.
Accessibility: Atmail states its webmail interface meets WCAG 2.1 Level A and AA.
Security: Atmail says its cloud email operations, including development and support, are ISO 27001 certified and that customer data is encrypted.
Reliability: Atmail advertises 99.99% uptime and stability across multiple regions on its cloud services page.
Support: Essential Support is included in new cloud subscriptions; Atmail also offers support packages including 24/7/365 Platinum Support.
Trial: Atmail advertises generous free trials but does not state a trial duration on the page.
Company history: Atmail says it launched one of the first commercial webmail platforms in 1998.
Mail features: The interface brings email, contacts, tasks, calendars, and files together, with real-time synchronization and one-click archiving.

Where it ranks on The Geeks Club

Best Email Clients in 2026#137 of 143

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Sources

atmail.com· checked 11 Oct 2026
atmail.com/company/· checked 11 Oct 2026
atmail.com/ux/· checked 11 Oct 2026
atmail.com/why-atmail-2/· checked 11 Oct 2026
atmail.com/supportpackages/· checked 11 Oct 2026
atmail.com/atmail-cloud/· checked 28 Sept 2026