PowerMTA and Postmastery: deploy the best software with the best services

PowerMTA from Port25 is industrial-strength software for high-volume email delivery. Designed for performance, deliverability and manageability, PowerMTA is able to consistently deliver hundreds of thousands of emails per hour. With it’s extensive configuration capabilities and Virtual MTA technology it provides granular control of sources, sending IPs, and domain policies.


As Port25 channel partner, Postmastery licensed / implemented / optimised PowerMTA for leading email service providers and brands


Would you like to improve your PowerMTA performance?


What makes PowerMTA special?

Clear focus: What sets PowerMTA apart from other solutions is the clear focus on email delivery: “doing one thing and doing it well”. This makes it the perfect fit for a best-of-breed solution with third-party CRM software, campaign front-ends or custom email applications.

Flexible hosting: PowerMTA is delivered as software, and not as a hardware appliance, like many other vendors. Both Windows and Linux versions are available. This means that you use your preferred hosting platform, from dedicated on-premise to the cloud or anything in between.

Industry standard: PowerMTA is used by more than 70% of Email Service Providers to power their email delivery infrastructure. Many smaller senders, marketing agencies and enterprises also use PowerMTA to make their email delivery reliable, secure and fast.


Our PowerMTA consulting services

After acquiring a PowerMTA licence, the software needs to be properly installed and configured. With a manual of over 300 pages describing over 200 configuration parameters, you feel overwhelmed. Our Set-up service builds upon more than a decade of PowerMTA expertise. We translate your needs and requirements into a working configuration, including many learnings and best practices.

You may have been using PowerMTA for a while but are wondering if you are using its full potential. Throughput may be limited, the delivery times may be long, or there may be many temporary errors and retries. You also want to be sure that the settings for recipient domains are compliant with provider policies and common best practices. In this case a PowerMTA assessment is advisable.

Sustained deliverability requires constant attention. Postmastery can proactively monitor the entire infrastructure by automatically flagging non-compliances. Postmastery’s service also includes a proactive ‘expert-view’ on reputation, email delivery and PowerMTA configuration.


Do you want to get the most out of your PowerMTA infrastructure?


Our PowerMTA integration components

Postmastery has developed software components that allow easy integration with email applications. We have components for Interspire, Ongage, and for custom web applications. Our components leverage PowerMTA’s bounce and complaint processing and use standard HTTP APIs to pass bounce and complaint data back to the application.

Postmastery’s webhook for PowerMTA passes accounting data to custom web applications in real-time. Because it uses common interface standards HTTP, REST, and JSON it works with any web framework or programming language. It can be used to collect bounce and complaint information without the need to process bounce mails or complaint reports.

> Read more about our PowerMTA webhook