Openmail
Openmail: A minimal open-source desktop client for self-hosters managing multiple accounts. Ranked #98 of 142 in Email Clients by our editors (3.0/10); pricing: Open source; best for self-hosters wanting a minimal multi-account client.
At a glance
- Editor score3.0 / 10
- PricingOpen source
- Best forSelf-hosters wanting a minimal multi-account client
- Paid fromFree
- App coverageDesktop
- Facts checked20 Sep 2026
Where it wins
- Self-hosting on a server or local machine
- Unified inbox across multiple connected accounts
- Bulk actions, filtered search, and undo support
Where it doesn't
- Limited to desktop platforms
- Provider connectivity is centered on IMAP and SMTP
- Active alpha development may bring breaking changes
Our verdict on Openmail
Openmail is an open-source desktop email client for people who want to run their mail interface on a server or local machine. It supports Windows, macOS, and Linux, connects to providers through IMAP and SMTP, and is designed for users managing more than one email account. Its core workflow stays focused on everyday message handling rather than broader productivity features, with a unified inbox across connected accounts, bulk operations, advanced search, and undo for recent actions.
Its strongest feature set is the combination of self-hosting and multi-account organization. The separate client and server components give self-hosters a deployment model that can run locally or on their own server, while the unified inbox reduces the need to switch between accounts. Bulk actions and search filters are useful for managing larger mailboxes, and undo adds a practical recovery step for recent actions. The ecosystem fit is straightforward: Openmail communicates through IMAP and SMTP, so its scope is centered on standard email connectivity rather than a wide integration platform.
Openmail is a sensible choice for technically inclined users who value open-source software, local control, and a compact desktop client across major desktop operating systems. It is less suitable for organizations seeking a mature, broadly integrated email workspace or a product with a settled release track. The project is actively under development, and the latest listed release is v0.0.1-alpha0; breaking changes are possible. Choose Openmail when self-hosting and a focused multi-account inbox matter most, and consider an alternative when release stability or a wider ecosystem is the priority.
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Openmail pricing
Openmail fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| App coverage | Desktop |
| Account limit | Not verified |
| Unified inbox | Yes |
| Offline access | Not verified |
| Scheduled sending | Not verified |
| Calendar tools | Not verified |
| Deployment | Cloud, Self-hosted, Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Open source |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Openmail
- Mozilla ThunderbirdA capable free client for multi-account email, offline access, and desktop productivity tools.9.4
- Zoho MailA flexible hosted email service with free access, migration tools, and Zoho collaboration options.9.2
- Apple MailA capable Apple-focused email client with unified inboxes, scheduling, privacy controls, and AI assistance.9.1
See all Openmail alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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