Core
Everything you need to run email
Production-grade mail server with developer-first APIs
SMTP Server (Postfix)
Send and receive email. TLS/STARTTLS on ports 25, 587, 465. SASL authentication, virtual domains, relay controls.
IMAP & POP3 (Dovecot)
Full mailbox access on ports 993/995. Maildir storage, quota enforcement, SSL/TLS, ManageSieve support.
Spam Filtering (Rspamd)
Machine-learning spam detection, greylisting, DNSBL checks, content filtering, virus scanning.
Email Tracking
Open tracking via invisible pixel. Click tracking via URL rewriting. Real-time engagement data.
Webhooks
50+ event types: delivered, bounced, opened, clicked, auth failures. HMAC-SHA256 signed payloads with retry.
REST API
Full CRUD for domains, mailboxes, aliases, filters, SSL certificates. OpenAPI 3.0 spec with Swagger UI.
Included
What’s in the Community Edition
Everything listed below is free, open source, and production-ready
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Postfix SMTPSend/receive on ports 25, 587, 465. TLS/STARTTLS, SASL auth, virtual domains
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Dovecot IMAP/POP3Mailbox access on 993/995/143/110. Maildir, quotas, ManageSieve (4190)
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Rspamd Anti-SpamML spam detection, greylisting, DNSBL, content filtering, virus scanning
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SPF / DKIM / DMARCFull email authentication. Auto DKIM signing, SPF validation, DMARC policy
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SSL/TLS with Let’s EncryptAuto-provisioning, SNI per-domain, certificate monitoring, auto-renewal
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Email Open & Click TrackingInvisible pixel for opens, URL rewriting for clicks, real-time events
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Webhook Notifications50+ events (delivered, bounced, opened, clicked). HMAC signatures, retry logic
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REST APIFull CRUD for organizations, domains, mailboxes, aliases, filters, SSL certs
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Rate LimitingPer-organization, per-domain, per-mailbox sending limits with alerts
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Sieve Mail FiltersPer-mailbox rules: move to folder, forward, auto-reply, discard. Templates included
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Roundcube WebmailFull webmail interface with elastic skin, ManageSieve plugin, archive support
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Email Client AutoconfigThunderbird, Outlook, Apple Mail auto-discovery. MTA-STS support
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Docker DeploymentSingle docker compose up. Dev and production configs included
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Database MigrationsAlembic-managed schema. Backup/restore scripts with S3 support
API
Quick Links
Interactive documentation for every endpoint