Have you built something using KumoMTA? Share it here! If the tool/project is proprietary or commercial it must be disclosed in the post.
NOTE: All projects posted here are neither endorsed nor supported by the KumoMTA team. We are not liable for any issues that arise from using the tools posted here, download and use them at your own risk.
I wanted to share a project that aims to extend the power of KumoMTA by providing a robust, enterprise-grade management layer and UI. PostMTA is a self-hosted platform designed to simplify the deployment, orchestration, and monitoring of KumoMTA-based infrastructure.
We’ve built this to help teams leverage the high performance of KumoMTA while adding the high-level features typically found in expensive SaaS ESPs—all while maintaining 100% data sovereignty.
Key Features & Capabilities:
AI-Powered “Zero-Touch” Deployment: PostMTA features a unique deployment system using a local LLM (Qwen2.5-Coder) that monitors the installation process. It detects environment-specific failures (like port conflicts or missing dependencies) and applies auto-healing fixes in real-time.
Comprehensive Console UI: A full dashboard for managing your email operations, moving beyond the CLI to provide visual insights into delivery performance, queue status, and reputation.
71+ REST API Endpoints: A developer-first approach with extensive endpoints for single or batch sending (up to 100 per request), domain management, and credentialing.
Advanced Deliverability Suite:
vMTA & Warmup Control: Automated state machines for IP/vMTA warming and granular pause/resume controls.
DKIM & BIMI Management: Automated DKIM key generation, rotation, and BIMI record verification.
ISP-Level Analytics: Detailed time-series data and bounce categorization to identify exactly where and why messages are being deferred.
Security & Compliance: Built-in security suite including greylisting stats, DNSBL monitoring, and spam score analysis.
Multi-Tenant Infrastructure: Includes a credit management and billing system, making it ideal for agencies or teams running internal ESP services.
Modern Tech Stack: Utilizes PostgreSQL 16 and Redis 7 for high-performance queuing and state management.
Why we built this on KumoMTA:
We believe KumoMTA is the future of high-volume email. PostMTA is designed to lower the barrier to entry for enterprises that need Kumo’s speed but require a GUI-based management interface, detailed reporting, and a robust API for their developers.
We would love to get the community’s feedback on our approach to KumoMTA orchestration and the AI-assisted deployment model.