Power smooth connections with every message

Whether it’s a late payment notice or a service interruption alert, ensure every message lands, renders, and functions as expected.

Image of woman on laptop with energy service notification on gradient background
Image of woman on laptop with energy service notification on gradient background

Trusted by companies of all sizes

Assortment of brand logos including Forbes, Uber, Paypal, Checkout.com, UEFA and Aer Lingus.
Assortment of brand logos including Forbes, Uber, Paypal, Checkout.com, UEFA and Aer Lingus.
Email and mobile phone illustration on gradient background running tests

Test every message your customers count on

  • Ensure links work and important messages aren’t sent incomplete or to the wrong user.

    Catch formatting issues, broken calls to action, or delays in delivery across billing alerts, contract notices, and service updates - before they cause confusion or complaints.

Email and mobile phone illustration on a gradient background with pass and fail notifications

Trust is built one message at a time

Utilities power everyday life - so every message matters. From bill notifications to outage alerts and security codes, there’s no room for error.

Mailosaur helps energy providers test every email and SMS that keeps customers informed. Simulate real scenarios, spot issues before go-live, and ensure communications are accurate, timely, and reflect your service at its best.

Email and mobile phone illustration on a gradient background with pass and fail notifications

How have other customers used Mailosaur?

AWeber

QAs at AWeber use Mailosaur to programmatically send, retrieve, and check email, without affecting their sending reputation.

P97

Product managers at P97 use Mailosaur to automate their email testing and drive exceptional user engagement.

Cold Banana

With Mailosaur, Cold Banana automates test flows to reduce manual work and human error.

Ready to learn more?

Get started with a free demo or 14-day trial

With a free trial and easy integration, you're minutes away from seeing how Mailosaur could be the answer to your testing needs.

Gradient background with picture of man on laptop with email and pass and fail symbols
Gradient background with picture of man on laptop with email and pass and fail symbols

Automate high-stakes testing at scale

Manually testing the same flows, like meter alerts or bill reminders, can slow teams down.

Mailosaur integrates with your CI/CD pipeline, so you can automate high-volume testing for login prompts, service notices, and outage updates without compromising on accuracy or compliance.

Scale confidently and keep communications reliable for every customer.

Light and dark mode emails with email client logos

Consistent communication for all customers

Emails about meter readings or service disruptions must be accessible, easy to comprehend, and contain appropriate further information and links.

Mailosaur’s email preview tool helps you test how these messages render across different email clients and devices, so vital information doesn’t get buried, distorted, or missed entirely, and you offer a consistent service customers can depend on.

Light and dark mode emails with email client logos
Coupa logo

Don't just take our word for it...

The ease of Mailosaur’s API access really made them stand out from the competition and helped us to accelerate the adoption of the platform across the company. Our team has needed little to no training as Mailosaur is a simple platform to work with

QA team at Coupa

Learn more
Security and GDPR logos on gradient background with laptop illustration
Security and GDPR logos on gradient background with laptop illustration

Security you can rely on

With the highest standard of physical security and environmental controls, all of our systems are protected by up-to-date encryption protocols, cipher suites, and encrypted at rest using AES-256. Mailosaur is also ISO27001 certified, and PCI DSS compliant.

Works with any stack

Mailosaur provides official libraries and plugins for all major programming languages and test frameworks.

cypress logo
ghost-inspector logo
playwright logo
webdriverio logo
selenium logo
testcafe logo
robot-framework logo
postman logo
powershell logo
dotnet logo

Time to take the plunge?

Get in touch or create an account

Book a demo with our friendly team, or start your free 14 day trial.