diff --git a/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETCore.approved.txt b/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETCore.approved.txt
index 7c0b8a9d..fcc0552f 100644
--- a/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETCore.approved.txt
+++ b/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETCore.approved.txt
@@ -5448,6 +5448,8 @@ Octopus.Client.Model
   {
     .ctor()
     Boolean EnableSsl { get; set; }
+    String GoogleAudience { get; set; }
+    String GoogleServiceAccount { get; set; }
     String NewSmtpPassword { get; set; }
     String SendEmailFrom { get; set; }
     String SmtpHost { get; set; }
diff --git a/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETFramework.approved.txt b/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETFramework.approved.txt
index 0f533182..1f07c8b3 100644
--- a/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETFramework.approved.txt
+++ b/source/Octopus.Client.Tests/PublicSurfaceAreaFixture.ThePublicSurfaceAreaShouldNotRegress..NETFramework.approved.txt
@@ -5467,6 +5467,8 @@ Octopus.Client.Model
   {
     .ctor()
     Boolean EnableSsl { get; set; }
+    String GoogleAudience { get; set; }
+    String GoogleServiceAccount { get; set; }
     String NewSmtpPassword { get; set; }
     String SendEmailFrom { get; set; }
     String SmtpHost { get; set; }
diff --git a/source/Octopus.Server.Client/Model/SmtpConfigurationResource.cs b/source/Octopus.Server.Client/Model/SmtpConfigurationResource.cs
index 718ff3dd..3959358a 100644
--- a/source/Octopus.Server.Client/Model/SmtpConfigurationResource.cs
+++ b/source/Octopus.Server.Client/Model/SmtpConfigurationResource.cs
@@ -26,6 +26,12 @@ public class SmtpConfigurationResource : Resource
 
         [Writeable]
         public SensitiveValue SmtpPassword { get; set; }
+        
+        [Writeable]
+        public bool GoogleAudience { get; set; }
+        
+        [Writeable]
+        public int? GoogleServiceAccount { get; set; }
 
         [NotReadable]
         [Writeable]