diff --git a/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs b/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs
index e1574a65..b34d6dbd 100644
--- a/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs
+++ b/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs
@@ -358,6 +358,20 @@ namespace WireMock.Net.ConsoleApplication
                     .WithBody("linq match !!!")
                 );
 
+            server
+                .Given(Request.Create().WithPath("/myendpoint").UsingAnyMethod())
+                .RespondWith(Response.Create()
+                    .WithStatusCode(500)
+                    .WithBody(requestMessage =>
+                    {
+                        string returnStr = JsonConvert.SerializeObject(new
+                        {
+                            Message = "Test error"
+                        });
+                        return returnStr;
+                    })
+                );
+
             System.Console.WriteLine("Press any key to stop the server");
             System.Console.ReadKey();
             server.Stop();
diff --git a/src/WireMock.Net/ResponseBuilders/Response.cs b/src/WireMock.Net/ResponseBuilders/Response.cs
index 48629d1e..714da3e3 100644
--- a/src/WireMock.Net/ResponseBuilders/Response.cs
+++ b/src/WireMock.Net/ResponseBuilders/Response.cs
@@ -169,7 +169,14 @@ namespace WireMock.ResponseBuilders
         /// <inheritdoc cref="IBodyResponseBuilder.WithBody(Func{RequestMessage, string}, string, Encoding)"/>
         public IResponseBuilder WithBody(Func<RequestMessage, string> bodyFactory, string destination = BodyDestinationFormat.SameAsSource, Encoding encoding = null)
         {
-            return WithCallback(req => new ResponseMessage { Body = bodyFactory(req) });
+            Check.NotNull(bodyFactory, nameof(bodyFactory));
+
+            return WithCallback(req => new ResponseMessage
+            {
+                Body = bodyFactory(req),
+                BodyDestination = destination,
+                BodyEncoding = encoding ?? Encoding.UTF8
+            });
         }
 
         /// <inheritdoc cref="IBodyResponseBuilder.WithBody(byte[], string, Encoding)"/>
@@ -353,6 +360,22 @@ namespace WireMock.ResponseBuilders
                 await Task.Delay(Delay.Value);
             }
 
+            if (Callback != null)
+            {
+                var callbackResponseMessage = Callback(requestMessage);
+
+                // Copy StatusCode from ResponseMessage
+                callbackResponseMessage.StatusCode = ResponseMessage.StatusCode;
+
+                // Copy Headers from ResponseMessage (if defined)
+                if (ResponseMessage.Headers != null)
+                {
+                    callbackResponseMessage.Headers = ResponseMessage.Headers;
+                }
+
+                return callbackResponseMessage;
+            }
+
             if (ProxyUrl != null && _httpClientForProxy != null)
             {
                 var requestUri = new Uri(requestMessage.Url);
@@ -367,11 +390,7 @@ namespace WireMock.ResponseBuilders
                 return ResponseMessageTransformer.Transform(requestMessage, ResponseMessage);
             }
 
-            if (Callback != null)
-            {
-                return Callback(requestMessage);
-            }
-
+            // Just return normal defined ResponseMessage
             return ResponseMessage;
         }
     }
diff --git a/test/WireMock.Net.Tests/FluentMockServerTests.Admin.cs b/test/WireMock.Net.Tests/FluentMockServerTests.Admin.cs
index 5dbb11d3..b0dab914 100644
--- a/test/WireMock.Net.Tests/FluentMockServerTests.Admin.cs
+++ b/test/WireMock.Net.Tests/FluentMockServerTests.Admin.cs
@@ -48,15 +48,15 @@ namespace WireMock.Net.Tests
         [Fact]
         public void FluentMockServer_Admin_StartStop()
         {
-            var server1 = FluentMockServer.Start("http://localhost:9091");
+            var server1 = FluentMockServer.Start("http://localhost:19091");
 
-            Check.That(server1.Urls[0]).Equals("http://localhost:9091");
+            Check.That(server1.Urls[0]).Equals("http://localhost:19091");
 
             server1.Stop();
 
-            var server2 = FluentMockServer.Start("http://localhost:9091/");
+            var server2 = FluentMockServer.Start("http://localhost:19091/");
 
-            Check.That(server2.Urls[0]).Equals("http://localhost:9091/");
+            Check.That(server2.Urls[0]).Equals("http://localhost:19091/");
 
             server2.Stop();
         }
diff --git a/test/WireMock.Net.Tests/FluentMockServerTests.cs b/test/WireMock.Net.Tests/FluentMockServerTests.cs
index 596bef47..4de46636 100644
--- a/test/WireMock.Net.Tests/FluentMockServerTests.cs
+++ b/test/WireMock.Net.Tests/FluentMockServerTests.cs
@@ -106,7 +106,7 @@ namespace WireMock.Net.Tests
         [Fact]
         public async Task FluentMockServer_Should_respond_to_request_bodyAsCallback()
         {
-            // given
+            // Assign
             var _server = FluentMockServer.Start();
 
             _server
@@ -114,14 +114,18 @@ namespace WireMock.Net.Tests
                     .WithPath("/foo")
                     .UsingGet())
                 .RespondWith(Response.Create()
-                    .WithStatusCode(200)
-                    .WithBody(req => $"{{ path: '{req.Path}' }}"));
+                    .WithStatusCode(500)
+                    .WithHeader("H1", "X1")
+                    .WithBody(req => $"path: {req.Path}"));
 
-            // when
-            var response = await new HttpClient().GetStringAsync("http://localhost:" + _server.Ports[0] + "/foo");
+            // Act
+            var response = await new HttpClient().GetAsync("http://localhost:" + _server.Ports[0] + "/foo");
 
-            // then
-            Check.That(response).IsEqualTo("{ path: '/foo' }");
+            // Assert
+            string content = await response.Content.ReadAsStringAsync();
+            Check.That(content).IsEqualTo("path: /foo");
+            Check.That((int) response.StatusCode).IsEqualTo(500);
+            Check.That(response.Headers.GetValues("H1")).ContainsExactly("X1");
         }
 
         [Fact]
diff --git a/test/WireMock.Net.Tests/ResponseBuilderTests/ResponseWithBodyTests.cs b/test/WireMock.Net.Tests/ResponseBuilderTests/ResponseWithBodyTests.cs
index 0d22dac6..a13e26c1 100644
--- a/test/WireMock.Net.Tests/ResponseBuilderTests/ResponseWithBodyTests.cs
+++ b/test/WireMock.Net.Tests/ResponseBuilderTests/ResponseWithBodyTests.cs
@@ -1,5 +1,4 @@
-using System;
-using System.Text;
+using System.Text;
 using System.Threading.Tasks;
 using NFluent;
 using WireMock.Models;
@@ -150,5 +149,30 @@ namespace WireMock.Net.Tests.ResponseBuilderTests
             Check.That(((dynamic)responseMessage.BodyAsJson).value).Equals(42);
             Check.That(responseMessage.BodyEncoding).Equals(Encoding.ASCII);
         }
+
+        [Fact]
+        public async Task Response_ProvideResponse_WithBody_Func()
+        {
+            // Assign
+            var request = new RequestMessage(new UrlDetails("http://localhost/test"), "GET", ClientIp);
+
+            var response = Response.Create()
+                .WithStatusCode(500)
+                .WithHeader("H1", "X1")
+                .WithHeader("H2", "X2")
+                .WithBody(req => $"path: {req.Path}");
+
+            // Act
+            var responseMessage = await response.ProvideResponseAsync(request);
+
+            // Assert
+            Check.That(responseMessage.Body).IsEqualTo("path: /test");
+            Check.That(responseMessage.BodyAsBytes).IsNull();
+            Check.That(responseMessage.BodyAsJson).IsNull();
+            Check.That(responseMessage.BodyEncoding.CodePage).Equals(Encoding.UTF8.CodePage);
+            Check.That(responseMessage.StatusCode).IsEqualTo(500);
+            Check.That(responseMessage.Headers["H1"].ToString()).IsEqualTo("X1");
+            Check.That(responseMessage.Headers["H2"].ToString()).IsEqualTo("X2");
+        }
     }
 }
\ No newline at end of file