About ITPison
ITPison designs and operates enterprise-grade email delivery infrastructure for teams that can’t afford missed sends, unstable throughput, or reputation damage.
Founded in 2002 and trusted by high-volume senders across Asia-Pacific, we bring proven delivery systems to global programs—with deployment options across regions and cloud environments.
Built from distributed messaging roots
Our Story
ITPison was founded in 2002 by Tom Tang, our Founder & CEO, after gaining engineering experience in Silicon Valley and returning to Taiwan to build large-scale messaging systems.
We started with high-speed publish/subscribe technology for demanding notification workloads. That foundation evolved into our proprietary email delivery platform, including a high-performance Mail Transfer Agent (MTA) engineered for stability under heavy traffic
What We Do
High-volume email delivery, engineered—not packaged
We help organizations deliver email reliably at scale—transactional messages, system notifications, and large campaigns with unpredictable spikes.
Our infrastructure is designed for:
High-volume transactional and bulk sending
Campaign spikes and burst throughput
Stability under queue pressure and ISP variability
Flexible deployment (cloud, region, and architecture)
At the core is our proprietary MTA, capable of delivering tuned and maintained by engineers who focus exclusively on delivery performance.
Proven at enterprise scale—deployable worldwide
Today, ITPison delivers billions of emails each month for demanding platforms and enterprise senders. Our solutions can be deployed:
On our infrastructure
In your preferred cloud provider
In specific regions for compliance, latency, or policy requirements
You choose the environment. We help you run reliable delivery.
Enterprise security built into delivery
ITPison supports modern email security and authentication standards, including:
High-volume transactional and bulk sending
Campaign spikes and burst throughput
Stability under queue pressure and ISP variability
We comply with GDPR and Taiwan’s Personal Data Protection Act. Our security architecture and data‑handling practices are designed to support the compliance requirements of US and international customers, with flexible deployment and advanced encryption options available.
Customer Success & Support
ITPison provides project-based onboarding and implementation support, with a defined escalation path for delivery-critical issues.
For production senders, we offer structured onboarding to establish authentication, warm-up, and stable sending patterns.
Our global presence is focused on market development and customer coordination, while core delivery technology and engineering operations are supported by our established team in Asia-Pacific.
Why teams choose ITPison
Delivery stability at high volume
Infrastructure-level control (not a black box)
Deep expertise in real-world failure modes and ISP behavior
Flexible deployment models and long-term partnership approach
We build for senders who measure success in delivered messages—not dashboards.