YMOZ
YMOZ: A protocol-rich email service for teams that want secure administration and self-hosting options. Ranked #59 of 178 in Email Hosting by our editors (5.3/10); pricing: Open source; best for self-hosters needing secure email administration.
At a glance
- Editor score5.3 / 10
- PricingOpen source
- Best forSelf-hosters needing secure email administration
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Custom-domain mailboxes with webmail, IMAP, POP3, and SMTP
- S/MIME, PGP, 2FA, aliases, and spam filtering controls
- REST API for domains, mailboxes, aliases, and sync jobs
Where it doesn't
- Mobile access relies on third-party apps
- @ymoz.com mailboxes require an invitation
- No native AI features
Our verdict on YMOZ
YMOZ is an open-source email hosting service built with mailcow and SOGo. It supports custom-domain mailboxes, browser-based SOGo webmail, and standard IMAP, POP3, and SMTP access. Calendar and contact synchronization extend through CalDAV, CardDAV, and Microsoft Exchange ActiveSync. The product is aimed at self-hosters, administrators, and teams that want control over domains, mailboxes, aliases, and synchronization jobs rather than a narrow webmail-only service.
Its platform fit is broad. YMOZ works with Mozilla Thunderbird, eM Client, Apple Mail, Windows Mail, and Microsoft Outlook, while CalDAV, CardDAV, and ActiveSync support connects calendars and contacts across compatible clients. The REST API adds administrative control for domains, mailboxes, aliases, and sync jobs. Documentation also covers a Dockerized email stack for self-hosting, while custom managed hosting is positioned as an option for larger teams. Mobile access is handled through third-party apps rather than a native mobile application.
Security and administration are central strengths. Users can enable two-factor authentication with authenticator apps or a YubiKey, and the service supports both S/MIME and PGP encryption. Temporary aliases and alias management add flexibility for custom-domain workflows, while spam filtering controls address routine mail administration. YMOZ suits technically capable users who value open-source infrastructure, protocol support, and administrative APIs. It is less suitable for buyers seeking native mobile apps, built-in AI features, or a single mailbox experience without separate access requirements for custom domains and @ymoz.com addresses.
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YMOZ pricing
YMOZ fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Storage per mailbox | Not verified |
| Email aliases | Not verified |
| Attachment limit | Not verified |
| IMAP/POP support | Yes |
| Mobile app access | Third_party |
| Calendar included | Not verified |
| Migration tools | Not verified |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Compliance & security | 2FA |
| Support | Email, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 8 integrations: Mozilla Thunderbird, eM Client, Apple Mail, Windows Mail, Microsoft Outlook, CalDAV … |
| Pricing | Open source |
| Website | ymoz.com |
| Facts checked | 22 Sep 2026 |
YMOZ integrations
YMOZ lists 8 integrations on its own site.
- Mozilla Thunderbird
- eM Client
- Apple Mail
- Windows Mail
- Microsoft Outlook
- CalDAV
- CardDAV
- Microsoft Exchange ActiveSync
Alternatives to YMOZ
- Zoho MailA flexible business email suite with a free plan, low-cost entry tier, and migration support.9.4
- Microsoft Exchange OnlineA deep Exchange service for organizations centered on Outlook and administration.9.2
- Google WorkspaceA full Gmail-based collaboration suite for organizations that need more than email.9.1
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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