diff --git a/src/WireMock.Net/Admin/Mappings/ResponseModel.cs b/src/WireMock.Net/Admin/Mappings/ResponseModel.cs
index e20de800..0cf72ee8 100644
--- a/src/WireMock.Net/Admin/Mappings/ResponseModel.cs
+++ b/src/WireMock.Net/Admin/Mappings/ResponseModel.cs
@@ -63,6 +63,14 @@ namespace WireMock.Admin.Mappings
         /// </value>
         public IDictionary<string, string> Headers { get; set; }
 
+        /// <summary>
+        /// Gets or sets the Headers (Raw).
+        /// </summary>
+        /// <value>
+        /// The Headers (Raw).
+        /// </value>
+        public string HeadersRaw { get; set; }
+
         /// <summary>
         /// Gets or sets the delay in milliseconds.
         /// </summary>
diff --git a/src/WireMock.Net/Server/FluentMockServer.Admin.cs b/src/WireMock.Net/Server/FluentMockServer.Admin.cs
index 4a463f4d..bc33e20e 100644
--- a/src/WireMock.Net/Server/FluentMockServer.Admin.cs
+++ b/src/WireMock.Net/Server/FluentMockServer.Admin.cs
@@ -429,6 +429,16 @@ namespace WireMock.Server
 
             if (responseModel.Headers != null)
                 responseBuilder = responseBuilder.WithHeaders(responseModel.Headers);
+            else if (responseModel.HeadersRaw != null)
+            {
+                foreach (string headerLine in responseModel.HeadersRaw.Split(new[] { "\n", "\r\n" }, StringSplitOptions.RemoveEmptyEntries))
+                {
+                    int indexColon = headerLine.IndexOf(":", StringComparison.Ordinal);
+                    string key = headerLine.Substring(0, indexColon).TrimStart(' ', '\t');
+                    string value = headerLine.Substring(indexColon + 1).TrimStart(' ', '\t');
+                    responseBuilder = responseBuilder.WithHeader(key, value);
+                }
+            }
 
             if (responseModel.Body != null)
                 responseBuilder = responseBuilder.WithBody(responseModel.Body, ToEncoding(responseModel.BodyEncoding));