diff --git a/Providers/Resgrid.Providers.Email/PostmarkTemplateProvider.cs b/Providers/Resgrid.Providers.Email/PostmarkTemplateProvider.cs
index 005a1481..025f65cf 100644
--- a/Providers/Resgrid.Providers.Email/PostmarkTemplateProvider.cs
+++ b/Providers/Resgrid.Providers.Email/PostmarkTemplateProvider.cs
@@ -281,7 +281,7 @@ public async Task<bool> SendMessageMail(string email, string subject, string mes
 				{ "sender_name", senderName },
 				{ "title", subject },
 				{ "body", HtmlToTextHelper.ConvertHtml(messageBody) },
-				{ "action_url", $"https://resgrid.com/User/Messages/ViewMessage?messageId={messageId}" },
+				{ "action_url", $"https://app.resgrid.com/User/Messages/ViewMessage?messageId={messageId}" },
 				{ "timestamp", sentOn },
 				{ "commenter_name", senderName }
 			};