PostMTA
Service

Email Infrastructure
Management & Operations

End-to-end management of your email delivery infrastructure — from MTA selection and deployment to 24/7 operations and optimisation. Built on KumoMTA for maximum performance, with PowerMTA and Postfix expertise when needed.

Platforms

Supported Mail Transfer Agents

Deep expertise across the industry leading MTAs. We deploy and manage the right platform for your needs.

KumoMTA

High-performance, modern MTA built in Rust. Exceptional throughput, Lua-based policy engine, and advanced analytics. Our primary platform for new deployments.

  • 1M+ messages/hour per instance
  • Lua policy engine
  • Real-time analytics
  • Multi-tenant architecture
PowerMTA

Industry-standard MTA for high-volume email sending. Mature feature set, extensive ISP knowledge base, and proven reliability at scale.

  • Proven at extreme scale
  • Extensive ISP tuning
  • Advanced delivery controls
  • Mature ecosystem
Postfix

Reliable, open-source MTA for transactional email and moderate-volume sending. Integrated with our management and monitoring stack.

  • Reliable & secure
  • Open-source
  • Low resource footprint
  • Easy integration
Process

Deployment & Operations Process

A proven, structured approach to deploying and operating enterprise email infrastructure.

1

Requirements & Architecture

Assess your volume, sending patterns, ISP mix, and growth projections. Design optimal MTA architecture including topology, IP allocation, and warmup strategy.

2

Deployment & Configuration

Deploy and configure the chosen MTA on your infrastructure. Optimise for your specific sending profile with proper queue management, rate limiting, and bounce processing.

3

Migration & Cutover

Gradually migrate traffic from existing infrastructure with zero downtime. Validate delivery performance at each step before full cutover.

4

Ongoing Operations

24/7 monitoring, proactive maintenance, performance optimisation, and expert support. Regular reviews and continuous improvement.

Benefits

Why Choose Our Infrastructure Management

Decades of combined experience operating email infrastructure at ISP scale.

build

Expert Deployment

Deployed and optimised by engineers who have built and operated MTAs at ISP scale.

sync

Zero-Downtime Migration

Carefully orchestrated migration that maintains delivery continuity throughout the transition.

visibility

Full Visibility

Complete monitoring, alerting, and reporting across your entire email infrastructure stack.

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24/7 Expert Support

Round-the-clock support from engineers who know your infrastructure inside and out.

Ready to Transform Your Email Infrastructure?

Let our experts design, deploy, and manage your email infrastructure for maximum performance and reliability. Built on KumoMTA.