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.
Trusted by companies of all sizes
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.
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.
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.
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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.
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.
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.
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
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.
Frequently asked questions
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