#213
B
Rank #179
Mailu
Docker Compose-based full mail server stack bundling Postfix, Dovecot, Rspamd, and a web admin UI. Standout trait is packaging a notoriously hard-to-configure mail stack into a single reproducible compose file.
62.5
/ 100
⚙ Full Stack
A dozen-plus coordinating containers (Postfix, Dovecot, Rspamd, ClamAV, admin, webmail, Redis) glued together via Docker Compose, with mail stored on shared volumes. Python-based admin service ties configuration together.
📈 Scaling Analysis
Individual components (SMTP, IMAP, antispam) can in principle scale independently, but shared mail storage and the stack's tight coupling around Compose networking make true horizontal scale-out a significant re-architecture. Fine for a self-hosted small-organization mailserver, not designed for internet-scale multi-tenant mail hosting.
🚀 Running on Nexlayer
Each mail component (front, admin, imap, smtp, antispam, redis) becomes its own pod addressed via <podName>.pod:<port>, e.g. redis.pod:6379; pull images through mirror.gcr.io where upstream bases are Docker Hub official images. Mail server pods typically need externally routable IPs/DNS (MX, rDNS, SPF/DKIM) which is a poor fit for a purely internal cluster network.