Self-hosted, enterprise-grade email delivery platform built on KumoMTA. AI-powered deployment with LLM auto-healing, 71+ REST API endpoints, advanced analytics, and comprehensive deliverability management. Full control. No vendor lock-in. Maximum inbox placement.
REST API Endpoints
Dashboard Sections
Uptime SLA
Monthly Email Capacity
A complete email delivery platform with 71+ API endpoints, real-time monitoring, and advanced deliverability tools — all self-hosted on your infrastructure.
Send single or batch messages (up to 100 per request) with full control over headers, content, and tracking. High-throughput API for transactional and marketing email.
Create domains with auto-generated DKIM keys, verify DNS configuration, rotate DKIM keys, and manage BIMI records for brand authentication.
Create and manage virtual MTAs with pause/resume controls, automated warmup state machines, and per-vMTA queue monitoring.
ISP-level delivery metrics, time-series data, bounce reason categorization, trend analysis, and CSV export for comprehensive reporting.
Track email engagement with 1x1 transparent pixel for opens and redirect-based click tracking. Real-time event recording and deduplication.
Create webhook endpoints with automatic retry, delivery logs, test event dispatch, and comprehensive event data for integration.
Layered email security with greylisting statistics, DNSBL checking against major blocklists, spam score analysis, and antivirus scanning.
Multi-type credit system (bandwidth, storage) with consumption tracking, usage history, package management, and automated billing workflows.
Redis-backed sliding window rate limiting (600 req/min, 100 burst). Queue monitoring with flush, hold, and release actions per message queue.
JWT Bearer tokens and scoped API keys with rotation, granular permissions, and comprehensive authentication enforcement across all endpoints.
Per-ISP delivery breakdown, domain-level performance metrics, bounce categorization, and actionable insights for optimizing deliverability.
17 optimized database tables with PostgreSQL 16. Redis 7 for caching, rate limiting, and session management. Production-hardened infrastructure.
PostMTA includes a revolutionary AI-powered deployment system. During installation, a local Qwen2.5-Coder-0.5B LLM monitors every step, automatically detects failures, generates fixes, and applies them — no manual troubleshooting required. After successful deployment, the LLM removes itself completely, leaving zero trace.
[14:23:01] ✓ PostgreSQL 16 installed
[14:23:45] ✓ Redis 7 configured
[14:24:12] ✗ Nginx config failed — port 80 in use
[14:24:13] ⟳ LLM analyzing error...
[14:24:15] ⚡ Auto-fix: sudo systemctl stop apache2
[14:24:20] ✓ Fix applied — continuing deployment
[14:25:00] ✓ Deployment complete (112/112 tests passed)
LLM self-removed. Zero trace remaining.
Monitor, analyze, and optimize your entire email delivery pipeline from a single interface.
Real-time SMTP log analysis, ISP-level delivery metrics, bounce categorization, and time-series visualization.
IP and domain reputation tracking, blocklist monitoring, sender score trends, and automated alerts.
Pre-flight email checking with SPF/DKIM/DMARC validation, content analysis, and best practices scoring.
Aggregate and forensic DMARC report processing, policy visualization, and alignment checks.
From comprehensive audits to fully managed deliverability — our certified experts ensure your email program performs at its best.
Comprehensive audit of your email infrastructure: MTA configuration review, authentication analysis (SPF, DKIM, DMARC, BIMI), sender reputation assessment, and deliverability gap analysis with prioritized roadmap.
Ongoing optimisation of your email program with best practices implementation, MTA tuning for ISP-specific requirements, content optimization, and continuous performance monitoring.
End-to-end email infrastructure management from MTA selection and deployment to configuration, tuning, and migration. Expert support for KumoMTA, PowerMTA, Postfix, and more.
Full outsourced deliverability management. Our team operates as your email operations department — handling monitoring, reputation management, ISP relations, and inbox optimisation.
Complete email authentication deployment: SPF record optimization, DKIM signing configuration, DMARC policy enforcement (p=none → p=reject), and BIMI implementation for brand visibility.
Batch API sending with credit management, open/click tracking, and ISP-level analytics for campaigns up to 100K+ messages per day.
REST API for transactional messages (receipts, confirmations, password resets) with webhook delivery tracking and queue monitoring.
Self-hosted deployment on your infrastructure with vMTA warmup automation, DKIM/BIMI, rate limiting, and full compliance.
Multi-tenant platform with credit system, API key management, and billing integration for agencies and email service providers.
Learn the key factors that determine inbox placement and how to configure your self-hosted email infrastructure for maximum deliverability.
Read ArticleDKIM key rotation is essential for email security. Learn best practices for rotating DKIM keys without impacting email deliverability.
Read ArticleLearn how PostMTA uses Qwen2.5-Coder-0.5B LLM to automatically detect and fix installation failures during deployment — no manual troubleshooting required.
Read ArticleHow Omeda transformed their email delivery infrastructure with a complex KumoMTA migration, achieving 99.9% uptime and 40% throughput improvement.
JobtomeJobtome consolidated 30 Postfix installations into a single high-performance MTA, reducing management overhead by 90% while increasing delivery throughput.
XsarusFor Xsarus, reliable email delivery is business-critical. Learn how they achieved 99%+ inbox placement with self-hosted email infrastructure.
LapostaLaposta started with a comprehensive deliverability audit and ended with a full KumoMTA migration — resulting in measurable deliverability improvements.
Deploy PostMTA on your own infrastructure in under 30 minutes with our AI-powered setup. Full control, enterprise-grade security, and expert support when you need it.