Google Workspace is not available as a self-hosted solution but there are a few alternatives for power users and business that want to host a solution on-premise. The best Self-Hosted WebMail Provider alternative is Axigen. If that doesn't suit you, our users have ranked more than 50 alternatives to Google Workspace and three of them are WebMail Providers available as a self-hosted solution so hopefully you can find a suitable replacement. Other interesting Self-Hosted WebMail Provider alternatives to Google Workspace are CrossBox and iMail.
Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).
Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.
Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited mail accounts, storage, attachment size, custom logo. Free for commercial use.
Italy
EU
Bosnia & Herzegovina
China
Axigen is very robust email server, affordable, easy to host and manage with docker. You won't have any excuse left to take over your own data.