iRedMail
6.3#15 in mail server softwareFrom $10 a yearWebAPILinuxSelf-hosted
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| Fact | iRedMail | SmarterMail |
|---|---|---|
| Deployment | The Enterprise Edition is an on-premises product that keeps data on the user's own server. | SmarterMail is available for Linux and Windows and has a Docker version; the download page lists supported Linux distributions and Windows Server 2016, 2019, 2022, and 2025+. |
| Free edition limit | The free shell-based installer requires administrators to follow upgrade tutorials and apply changes manually, while Enterprise Edition offers one-click upgrades. | The Free Edition supports one domain and up to 10 mailboxes, but excludes MAPI/EWS, EAS, and premium add-ons. |
| Webmail | Users can manage mail, folders, sieve filters, and vacation settings through Roundcube webmail or SOGo groupware. | The webmail client includes online meetings, sharing, live chat, calendaring, task management, and file storage. |
You want what its maker publishes above — check its page for the details.
You want what its maker publishes above — check its page for the details.