Opterius Mail
The facts below are what the maker publishes about Opterius Mail, checked and dated. Our editors have not written about it yet.
Plans and prices
From Opterius Mail's own pricing page, checked 19 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Free forever · Open-source AGPL-3.0 software · Webmail and administration features included |
| Opterius Mail | Free | All features included · open source under AGPL-3.0 · Free forever |
The facts
Each one read from Opterius Mail's own pages, with the date it was checked.
Where it runs
- App coverage
- webchecked 19 Sep 2026
What it does
- Compose
- Compose supports reply, forward, CC/BCC, inline signatures, drafts, and contact autocomplete.checked 12 Oct 2026
- Contacts
- It includes a per-user address book that suggests saved contacts while composing messages.checked 12 Oct 2026
- Deployment modes
- It can run as webmail for existing IMAP/SMTP infrastructure or in admin mode with mail server management features.checked 12 Oct 2026
- DNS and DKIM
- The admin panel checks MX, SPF, DMARC, and DKIM records and can generate per-domain RSA DKIM key pairs and DNS TXT records.checked 12 Oct 2026
- Documentation and support
- The maker's documentation lists Opterius Mail setup, configuration, SSO integration, plugins, and administration guidance.checked 12 Oct 2026
- Folders and search
- Users can create, rename, and delete IMAP folders, and search subjects, senders, and message bodies across folders using IMAP UID SEARCH.checked 12 Oct 2026
- Installation and supported systems
- The installer configures Dovecot and Postfix integration and supports Ubuntu 22.04/24.04, Debian 11/12, AlmaLinux 8/9, and Rocky Linux 8/9.checked 12 Oct 2026
- Intended users
- The maker describes Opterius as a hosting control panel built for hosting companies and describes Mail as a platform for users and infrastructure teams.checked 12 Oct 2026
- Mail administration
- Admin mode supports mail domains, accounts, aliases, distribution groups, per-account quotas, account suspension, and autoresponders.checked 12 Oct 2026
- Mail protocols
- It authenticates directly against IMAP and supports SMTP mail servers, including Dovecot, Postfix, Exchange, Zimbra, and Courier.checked 12 Oct 2026
- Mobile use
- The web interface is mobile-responsive and the product page says no separate mobile app is required.checked 12 Oct 2026
- Panel integration
- Opterius Panel integration provides HMAC-SHA256 signed single sign-on, and the product page says Mail ships as Panel's default webmail with automatic account sync.checked 12 Oct 2026
- Purpose
- Opterius Mail is an open-source webmail client described as a Roundcube replacement for a mail server.checked 12 Oct 2026
- Security
- The product page says HTML email is rendered in a sandboxed iframe and IMAP credentials are kept in an encrypted session rather than written to the database.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 19 Sep 2026
The company
- Headquarters
- Romaniachecked 28 Sep 2026
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