Halon

Halon is the proven, flexible email infrastructure built for modern, large-scale senders. Designed for Dynamic Email Operations™, our Composable Email Infrastructure offers all the control, flexibility, security, and analytics you need - without the complexity. Unlike traditional infrastructure, Halon is composable: ready-made by us, fully controlled by you.

We help businesses move beyond basic delivery with modular, future-proof solutions that slot seamlessly into complex environments. Whether you're modernizing legacy systems, launching new customer experiences, or reducing total cost of ownership, Halon delivers 10x faster time to market without compromising on scale, security, or support.

Our containerised architecture is built for today’s microservices world, not the email era of 50 years ago. It scales effortlessly, integrates with any third-party tool, and gives teams real-time visibility and event-driven control.

With a track record spanning six continents and an NPS of 75, we back our tech with expert support teams that act as an extension of yours - helping you innovate, stay compliant, and outpace change.

From inbox providers to cloud platforms and transactional senders, Halon is the infrastructure behind dynamic, secure, and revenue-generating email operations.

Because mission-critical shouldn’t mean mission-impossible.