diff --git a/zero/Mails/MailProvider.cs b/zero/Mails/MailProvider.cs
index 6ec7a377..3b2c367f 100644
--- a/zero/Mails/MailProvider.cs
+++ b/zero/Mails/MailProvider.cs
@@ -1,5 +1,6 @@
 using Microsoft.Extensions.Logging;
 using System.Net.Mail;
+using System.Reflection;
 using System.Text;
 
 namespace zero.Mails;
@@ -76,6 +77,9 @@ public class MailProvider : IMailProvider
     message.BodyEncoding = encoding;
     message.Preheader = TokenReplacement.Apply(message.Preheader, message.Placeholders);
 
+    string appName = Zero.Options.AppName.Or(Assembly.GetEntryAssembly()?.GetName().Name);
+    message.Metadata.Add("application", appName);
+
     if (!message.HasView || message.Body.HasValue())
     {
       message.IsRendered = true;