Building the ad infrastructure newsletters deserve
Newsletter publishing is one of the most exciting creative businesses of the decade. But the ad monetisation tools available to newsletter operators have been borrowed from web advertising, and they were never designed for email. We built MailAdx to fix that.
What we believe
These values guide every product decision, every support conversation, and every line of code we ship.
Publisher-first
Every product decision starts with: does this give publishers more control, more revenue, or less operational friction? We believe publishers should own their economics.
Email-native
We build for email's constraints, not against them. No JavaScript in the inbox, honest open-time measurement, and real-time waterfall decisioning when subscribers actually open your email.
Privacy by design
No web tags, no cross-site tracking, no cookie sync. MailAdx's architecture is privacy-respecting by default — GDPR, CCPA, and Apple MPP compatible from day one.
Transparency
Flat-fee pricing with no revenue share, clear impression counting, honest performance reporting. We don't benefit from inflated metrics — our interests are aligned with yours.
Open standards
OpenRTB, REST APIs, documented schemas. We build on open standards so your integration works with the rest of the ecosystem, not just our walled garden.
Developer respect
Excellent API documentation, sandbox environments, SDKs in multiple languages, and a team that takes technical questions seriously. We treat developers as first-class users.
How we work
01
Build in public
We share our roadmap, publish our API schema as OpenAPI specs, and document our architecture decisions. No black boxes.
02
Listen to operators
Every major product decision starts with conversations with newsletter operators. We don't build features in a vacuum.
03
Ship, measure, improve
We move fast, but we measure everything. If a feature isn't working for publishers, we fix or remove it.
Join the newsletter ad revolution
Whether you're a solo publisher or running a network of 100 newsletters, MailAdx gives you the infrastructure to build a real ad business.