Drag, Drop, Engage. 

Create captivating emails that drive your supporters to take action. Schedule newsletters, build educational emails, and more with our easy-to-use drag-and-drop email editor. 


The most reliable way to engage your supporters.

Whether you need to supporters take action on your advocacy campaign, sign up for an event, or donate to your cause — email is still the most effective channel. Make building emails easier and have them look the way you want with our drag-and-drop editor. 

Action Alerts

Make advocacy easy for your supporters by sending action alerts. Forms will auto-fill for supporters leaving action a click away.

Drag-and-Drop Editor

Creating emails exactly the way you want is not only easy — it's fast. Drag in the elements you, customize and hit send.


Track all the key metrics to gauge your organization's email health — opens, link clicks, unsubscribes, and more.

Email Scheduling

Build it, set it, forget it. Have your emails sent precisely when you want them to be with email scheduling.


Make taking action simple for your supporters.

When you combine Muster's advocacy & email modules, you make taking action simple for your supporters and creating targeted campaigns easier for you.

Send emails only to supporters that can take action, have forms autofill for them, and gain greater insight into campaign performance.