Yarilo Documentation

Yarilo is a cloud-native mail server written in Go: IMAP, POP3, LMTP, Submission, JMAP and Sieve, designed for Kubernetes.

Where to start

• Installation — get a working instance up.
• General Configuration — yarilo.yaml structure and core settings.
• Architecture Overview — services, deployment topologies, the director ring.
• Deployment — Helm chart and production layouts.

Highlights

• Full protocol suite — IMAP4rev1/rev2, POP3, LMTP, Submission and JMAP, with SASL mechanisms including SCRAM and OAuth2.
• Horizontally scalable — the director ring routes users to backends; every deployment shape is a config change, never a different binary.
• Familiar storage — maildir, mdbox and sdbox mailbox formats with quota, namespaces, shared folders and full-text search.
• Kubernetes-first — Helm chart, Prometheus metrics, admin API and CLI tooling for day-2 operations.

Browse the full documentation using the sidebar. Source code and issues live on GitHub.