The right self-hosted mail solution for every scenario
From a personal mailbox on your own domain to enterprise mail infrastructure for tens of thousands of users. One Mailezine engine, one Webmail and one admin console — pick the edition by storage scale and licensed features.
Use Cases
Individuals & hobbyists
- Send and receive mail on your own domain, with data kept on your own server
- Docker Compose deploy on local machines, home broadband or cloud hosts
- Standard KV/FS storage + open protocols — back up or migrate any time
Small & medium businesses
- Team domain mailboxes live on day one: domains, mailboxes, aliases and DKIM configured in one console
- Baseline anti-spam enabled by default, with optional Rspamd scanning + macro/malware attachment scanning — no dedicated security staff needed
- Role permissions (admin / manager / user) + audit log with clear accountability
Large enterprises
- The Mailezine engine: 4.4× inbound throughput at 10,000-user load, ~1/25 the memory
- TiDB KV + MinIO/S3 object storage with on-demand horizontal scaling
- Multi-instance HA failover + built-in FTS full-text search
Developers & private deployments
- Community and Enterprise share one engine and one control plane; upgrades only touch storage and licensing
- One-click config import/export for batch delivery and versioning
- Native Linux / macOS / Windows, statically compiled, copy-and-run
Universities, research & institutions
- Data stays entirely on campus/institute servers, never through a third party
- Implicit TLS (465/993/995) with self-held certificates; mail ports can face the public internet
- Open source and auditable, meeting internal transparency requirements
Data-sensitive organizations
- PGP signing/encryption + remote image blocking protect content and metadata
- Two-factor auth + app tokens + audit log keep accounts traceable
- Outbound privacy cleanup: strips Received chains and client fingerprint headers
Finance, government & regulated industries
- Full mail archive (inbound/outbound capture, retention, review, mbox/eml export) for compliance retention
- Outbound DLP keyword/regex approval — sensitive content must be released before it leaves
- S/MIME + PGP dual encryption and audit logs, aligned with national and industry regulations
Mobile-first teams
- Exchange ActiveSync: native send/receive and push on iOS Mail / Outlook
- CardDAV / CalDAV: two-way contacts and calendar sync to phones and desktops
- App tokens: an independent credential per client, revocable anytime, without exposing your main password
Key capabilities behind the scenarios
Outbound relays & overseas channels
Connect third-party sending channels via directory relays / smarthost (SASL AUTH) and pick the best delivery path for overseas or marketing traffic.
SRS rewriting
Automatic SRS rewriting on forwarding chains so SPF/DKIM checks don't loop — forwarded mail is never lost or junked.
Smooth upgrade
An upgrade only touches the storage backend and licensing. Traditional Postfix + Dovecot (Maildir) deployments have a built-in one-way migration tool preserving order, flags, keywords and internal dates.
Mobile & sync protocols
Beyond standard SMTP / IMAP / POP3 / ManageSieve, the enterprise edition adds Exchange ActiveSync, CardDAV and CalDAV — phones and desktop clients connect natively.
Compliance archive & DLP
Engine-side full capture of inbound/outbound mail with retention policies and review workflows; outbound sensitive content is blocked or routed to approval — fully audited.
AD / LDAP directory integration
LDAP/AD authentication fallback, department-tree organization contacts, LDAP groups expanded into mailing lists in real time; account lifecycle sync disables departed employees automatically.
Not sure which to pick? Answer these three questions
Scale
Under a hundred people, budget-first? Community's free single node is plenty. Tens of thousands of users and performance-sensitive? Enterprise adds distributed storage and HA.
Storage
Fast mail growth or sudden capacity spikes? Enterprise object storage (MinIO/S3) scales horizontally on demand. Stable data volume? Community's single-node KV storage (Pebble + local FS) is plenty.
Support
Need commercial support, SLA, training and launch assistance? Choose Enterprise. Enjoy tinkering and community? Community is free and open source.
Both editions share the same Webmail and admin console, and Community can upgrade to Enterprise any time — same UI, and the built-in migration tool moves your data.
Find your scenario and start now
Community deploys free; Enterprise is a perpetual license by mailbox count. Start with one command — your data stays in your hands.