diff --git a/src/front/Components/DesignSystem/Newsletter/index.tsx b/src/front/Components/DesignSystem/Newsletter/index.tsx
index e7fa1570..b27c3c34 100644
--- a/src/front/Components/DesignSystem/Newsletter/index.tsx
+++ b/src/front/Components/DesignSystem/Newsletter/index.tsx
@@ -44,6 +44,12 @@ export default class Newsletter extends React.Component<IProps, IState> {
 			return;
 		}
 
+		const notairesRegex = /^[^\s@]+@notaires\.fr$/;
+		if (!notairesRegex.test(this.state.email)) {
+			this.setState({ errorMessage: "Veuillez utiliser une adresse e-mail professionnelle.", successMessage: "" });
+			return;
+		}
+
 		Mailchimp.getInstance().post({ email: this.state.email });
 		// Clear error message
 		this.setState({ errorMessage: "" });