Infrastructure: Not all clouds are created equal

A cloud’s performance relies as much on its provider’s experience as it does on its technical assets. Over the last 16 years, our architects and engineers have accumulated tremendous wisdom as they’ve continuously evolved our cloud to anticipate user needs and surpass our increasingly stringent internal benchmarks.

Deliver Exchange Enterprise-Grade Cloud

In 2009, Deliver Exchange became the world’s first provider of hosted Microsoft Exchange 2010. While preparing for that launch, our team decided to use this milestone to re-architect our cloud from the ground up. Our engineers and architects gathered to envision the perfect cloud platform—one that maximized both performance and availability.

A cloud’s performance relies as much on its provider’s experience as it does on its technical assets. And while Deliver Exchange’s technology stands with the world’s leaders, our experience is virtually unparalleled.


For any business that relies on the cloud, speed matters. That’s why we’ve engineered our cloud around the two main elements that impact its performance: network latency and processing capabilities. Our architects and engineers have designed our Exchange cloud to minimize the former while maximizing the latter.


Minimizing network latency

Minimizing network latency

Datacenter location.

One basic cause of latency is the physical distance your data has to travel. Rather than turning to complicated WAN acceleration or complex network configuration, we simply allow our customers to select the datacenter location closest to their end users. And if your users are located in multiple geographies, you can place each user’s data in the datacenter closest to them.

Network backbone

Network backbone.

We connect our datacenters to the internet via multiple tier 1 internet providers to minimize latency by physically reducing the distance your data has to travel to reach your end users.

Maximizing processing capabilities

Our cloud is engineered for processing speed at all three layers of its architecture: the virtualization layer, the computing layer and the storage layer. Many providers design their clouds for density, which means they oversubscribe virtualized resources to reduce their own costs and maximize profit. Our cloud is designed for performance and guarantees that application requests aren’t slowed down by resource crunches.

The heart and soul of our server infrastructure is a blazing mix of high-end servers with dedicated backup networks that help ensure our data security measures never cause bottlenecks in active usage.

For storage, our cloud also prioritizes performance over cost and we use the best technology available for maximizing storage performance and reducing latency. We can fine-tune each storage array to the optimal state based on its specific workload characteristics and make our cloud perform that much more responsively.

The only way to ensure superior performance is by having full visibility into it—not just from inside the datacenter, but also from outside perspectives that replicate the end user experience. Over our 16-year history, we have developed powerful proprietary monitoring services that let us examine our processing speed and network latency from every possible angle. We can predict failure and performance bottlenecks to accurately monitor our services from the customer perspective, and work proactively to ensure any issues are imperceptible to end users.


Our engineers and architects view the pursuit of 100% uptime as a passion. For the past twelve years, they have continuously analyzed historical operational experience to unearth insights for maintaining future performance. Today, our business-grade cloud delivers 99.999% uptime and includes a financially backed, industry-leading service-level agreement.

This level of availability is possible only because our architects and engineers have applied their deep expertise to three key technological components: our architecture, our world-class datacenters, and the internet providers that connect our datacenters to the world.

The Multi-Zone Design is one of Deliver Exchange’s pinnacle achievements. In this architecture, each section is built on its own dedicated hardware. This design ensures that any infrastructure failures are isolated to a specific section of the cloud to guarantee service availability.

Our Exchange mailbox databases are backed up using our proprietary Dumpster Restore Tool. To ensure highest possible hardware availability, each front-end section leverages VMware vMotion capabilities across cluster nodes within each quadrant. The back end sections use database replication for redundancy.

Each of our datacenters has been chosen to meet the highest availability criteria. Each one is SSAE 16 Type II compliant. Each one has verified levels of physical security. Each one also possesses redundant electrical and cooling infrastructure, including diesel generators for backup power, to protect against all imaginable problems. And finally, our entire cloud infrastructure is deployed with redundant power supply units in the unlikely event of a power feed failure.

The final element of our high availability comprises the providers that connect our datacenters to the internet. We’ve chosen multiple Tier 1 internet providers for this purpose. Taken together, these providers guarantee availability and give us capabilities to route traffic around any provider backbone issues that may arise. Our goal is simple: your data and tools are always available.