Irsal combines a high-performance mail server with a modern webmail client — every feature designed to work together from day one.
The engine room. Built in Rust for performance, reliability, and scale.
Host multiple organizations safely on a single deployment. Each tenant gets isolated domains, user directories, mailing lists, and customizable disk and principal quotas. Connect external identity providers via LDAP or OpenID Connect (OIDC) per tenant.
Tailor the web interface for every customer or department. Display domain-specific logos and branding on both the administrative dashboard and the self-service Account Manager.
Combine statistical classifiers, blocklists, and Large Language Models to analyze suspicious messages. Run local models (vLLM, Llama) or cloud endpoints (OpenAI, Anthropic) for automated triage, urgency detection, and advanced phishing defense.
Recover deleted mailboxes or individual messages instantly without relying on full-server backup restores. Archived items maintain full metadata for quick compliance or user error recovery.
Triage issues in real time with live SMTP connection tracing, memory metrics, and customizable alerting webhooks. Monitor exact server performance down to the millisecond.
Enable users to generate disposable masked email addresses directly from their Account Manager to keep their main address private and prevent spam leaks.
Scale data handling effortlessly. Route read traffic to replica nodes, shard message bodies across S3, Azure, or filesystem backends, and run sharded in-memory key-value stores for instant session routing.
JMAP-native. Zero-lag. Built for Mail, Calendar, Contacts, and Files.
Deploy Irsal in minutes and take full ownership of your email infrastructure.