Mailcow Dockerized vs Google Workspace
Google Workspace is an integrated productivity suite for email, documents, video calls, and storage. The comparison below covers the email layer specifically, where both tools directly overlap.
| Feature | Mailcow Dockerized | Google Workspace |
|---|
| License | GPL-3.0 | Proprietary |
| Self-hosting | Required | Not available |
| Cost model | Server cost only | Per-user subscription |
| Webmail | SOGo | Gmail |
| Calendar and contacts | CalDAV, CardDAV via SOGo | Google Calendar, Contacts |
| Spam filtering | Rspamd | Built-in |
| Antivirus | ClamAV | Built-in |
Mailcow is the better choice when data residency, per-seat cost control, or regulatory requirements prevent using Google's cloud infrastructure. Organizations in healthcare, legal, or government that cannot place mail data on US-based commercial services have no self-hosting path with Google Workspace.
Google Workspace remains the better fit when simplicity and integration with Google Drive, Docs, Meet, and the broader Google ecosystem matter more than data ownership. It requires no server management, works at any organizational scale, and its deliverability reputation is strong for new domains.
Mailcow Dockerized vs Microsoft 365
Microsoft 365 combines Exchange Online with Office applications, Teams, SharePoint, and OneDrive. For organizations already in the Microsoft ecosystem, it covers email, collaboration, and productivity under one subscription.
| Feature | Mailcow Dockerized | Microsoft 365 |
|---|
| License | GPL-3.0 | Proprietary |
| Self-hosting | Required | Not available |
| Cost model | Server cost only | Per-user subscription |
| Calendar sync | CalDAV, EAS via SOGo | Exchange ActiveSync, Outlook |
| Spam filtering | Rspamd | Exchange Online Protection |
Mailcow is the right choice when per-user licensing costs are prohibitive, when the organization needs email on its own infrastructure for compliance, or when a fully open and auditable mail stack is required. The EAS support in SOGo covers Outlook-compatible mobile sync without a Microsoft account.
Microsoft 365 remains a better fit for organizations already running Azure Active Directory, Teams, and SharePoint, where the value is in the tight integration across the Microsoft stack rather than email alone.
