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Carousels let the team show off stations, playlists and featured shows in a single swipeable module. Subscribers can browse the lot without scrolling past a wall of stacked content.

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How CRM and marketing teams build better email, faster, with mailCMS.
“Our marketing team can build so much faster and with confidence.”
Rayo is Bauer Media Group’s free music and radio app, bringing more than 50 stations together in one place, including Absolute Radio, KISS, Hits Radio, Greatest Hits Radio, Magic, Scala and Jazz FM. With mailCMS, its team brings carousels, quizzes and motion into its regular campaigns, and sends them with Braze.

Carousels, quizzes and animation can transform how people engage with email, but they rely on complex, hand-coded HTML that most email editors can’t handle.
Rayo wanted campaigns that felt as lively as the brand, and its platform’s drag-and-drop editor couldn’t take them there. Every interactive email would have needed a bespoke build from a developer, which is hard to scale and impossible to hand over to a marketing team.
Carousels let the team show off stations, playlists and featured shows in a single swipeable module. Subscribers can browse the lot without scrolling past a wall of stacked content.

From quick A or B polls to quizzes that unfold step by step, the team can get listeners playing along inside the email itself. Nobody has to click through to take part.

Animated headlines, images that zoom on hover and buttons that respond to the cursor add a layer of polish static emails can’t match. They’re built into Rayo’s design system, so every email gets them with no extra effort.

Editable text over a background image is notoriously tricky in email. Rayo’s design system has background image modules that work across email clients, so the team can change the copy and the imagery without worrying about how it will render.


Rayo’s mailCMS is connected to Braze. Finished emails go to Braze as templates in one click, and the team can browse Braze Content Blocks and drag them into their emails without leaving the editor.
mailCMS for BrazeFor Rayo, mailCMS has turned interactive email from a one-off technical exercise into something the team can use whenever a campaign calls for it. The modules are built, tested and ready to go, without relying on developers.
Book a friendly, no-pressure 30-minute walkthrough. We’ll look at how you build emails today and share practical ideas you can use straight away, whether or not you choose mailCMS.