Exclaimer

Email signatures, solved

Email is your most powerful communication channel—but keeping signatures consistent and compliant across every user, device, and department is harder than it should be.

Exclaimer makes it simple. For over 20 years, we’ve helped IT teams take control of email signatures—eliminating manual updates, closing compliance gaps, and reducing risk. For Marketing, Exclaimer turns email into a dynamic brand channel. Run targeted campaigns, launch promotional banners, and maintain brand consistency—without waiting on IT.

Trusted by 70,000+ organizations, Exclaimer delivers over 20 billion email signatures every year. The platform offers enterprise-grade security, 99.99% uptime, and seamless integration with Microsoft 365 and Google Workspace.

With Exclaimer, every email stays consistent, compliant, and under control.