diff --git a/src/ServiceControl.UnitTests/ApprovalFiles/APIApprovals.HttpApiRoutes.approved.txt b/src/ServiceControl.UnitTests/ApprovalFiles/APIApprovals.HttpApiRoutes.approved.txt
index 774916efa8..d9f1fdbc10 100644
--- a/src/ServiceControl.UnitTests/ApprovalFiles/APIApprovals.HttpApiRoutes.approved.txt
+++ b/src/ServiceControl.UnitTests/ApprovalFiles/APIApprovals.HttpApiRoutes.approved.txt
@@ -67,6 +67,6 @@ DELETE /recoverability/unacknowledgedgroups/{groupId:required:minlength(1)} => S
 HEAD /redirect => ServiceControl.MessageRedirects.Api.MessageRedirectsController:CountRedirects()
 GET /redirects => ServiceControl.MessageRedirects.Api.MessageRedirectsController:Redirects(String sort, String direction, PagingInfo pagingInfo)
 POST /redirects => ServiceControl.MessageRedirects.Api.MessageRedirectsController:NewRedirects(MessageRedirectRequest request)
-DELETE /redirects/{messageredirectid:guid} => ServiceControl.MessageRedirects.Api.MessageRedirectsController:DeleteRedirect(Guid messageRedirectId)
-PUT /redirects/{messageredirectid:guid} => ServiceControl.MessageRedirects.Api.MessageRedirectsController:UpdateRedirect(Guid messageRedirectId, MessageRedirectRequest request)
+DELETE /redirects/{messageRedirectId:guid} => ServiceControl.MessageRedirects.Api.MessageRedirectsController:DeleteRedirect(Guid messageRedirectId)
+PUT /redirects/{messageRedirectId:guid} => ServiceControl.MessageRedirects.Api.MessageRedirectsController:UpdateRedirect(Guid messageRedirectId, MessageRedirectRequest request)
 GET /sagas/{id} => ServiceControl.SagaAudit.SagasController:Sagas(PagingInfo pagingInfo, Guid id)
diff --git a/src/ServiceControl/MessageRedirects/Api/MessageRedirectsController.cs b/src/ServiceControl/MessageRedirects/Api/MessageRedirectsController.cs
index 80b9c987a9..4899498683 100644
--- a/src/ServiceControl/MessageRedirects/Api/MessageRedirectsController.cs
+++ b/src/ServiceControl/MessageRedirects/Api/MessageRedirectsController.cs
@@ -4,6 +4,7 @@
     using System.Collections.Generic;
     using System.Linq;
     using System.Net;
+    using System.Text.Json.Serialization;
     using System.Threading.Tasks;
     using Contracts.MessageRedirects;
     using Infrastructure.DomainEvents;
@@ -16,7 +17,6 @@
 
     using DeterministicGuid = Infrastructure.DeterministicGuid;
 
-    // TODO Re-evaluate the use of status codes in this controller
     [ApiController]
     [Route("api")]
     public class MessageRedirectsController(
@@ -29,15 +29,15 @@ public class MessageRedirectsController(
         [HttpPost]
         public async Task<IActionResult> NewRedirects(MessageRedirectRequest request)
         {
-            if (string.IsNullOrWhiteSpace(request.fromphysicaladdress) || string.IsNullOrWhiteSpace(request.tophysicaladdress))
+            if (string.IsNullOrWhiteSpace(request.FromPhysicalAddress) || string.IsNullOrWhiteSpace(request.ToPhysicalAddress))
             {
                 return BadRequest();
             }
 
             var messageRedirect = new MessageRedirect
             {
-                FromPhysicalAddress = request.fromphysicaladdress,
-                ToPhysicalAddress = request.tophysicaladdress,
+                FromPhysicalAddress = request.FromPhysicalAddress,
+                ToPhysicalAddress = request.ToPhysicalAddress,
                 LastModifiedTicks = DateTime.UtcNow.Ticks
             };
 
@@ -47,19 +47,25 @@ public async Task<IActionResult> NewRedirects(MessageRedirectRequest request)
 
             if (existing != null)
             {
-                //TODO verify both of these return the same as the previous code
-                return existing.ToPhysicalAddress == messageRedirect.ToPhysicalAddress
-                    // not using Created here because that would be turned by the HttpNoContentOutputFormatter into a 204
-                    ? StatusCode((int)HttpStatusCode.Created)
-                    : Conflict("Duplicate");
+                if (existing.ToPhysicalAddress == messageRedirect.ToPhysicalAddress)
+                {
+                    return StatusCode((int)HttpStatusCode.Created, messageRedirect);
+                }
+
+                // Setting the ReasonPhrase is no longer supported in HTTP/2. We could be using application/problem+json instead
+                // but that would require a lot of changes in the client code. For now, we are using the X-Particular-Reason header
+                Response.Headers["X-Particular-Reason"] = "Duplicate";
+                return StatusCode((int)HttpStatusCode.Conflict, existing);
             }
 
-            var dependents = collection.Redirects.Where(r => r.ToPhysicalAddress == request.fromphysicaladdress).ToList();
+            var dependents = collection.Redirects.Where(r => r.ToPhysicalAddress == request.FromPhysicalAddress).ToList();
 
             if (dependents.Any())
             {
-                //TODO verify this returns the same as the previous code
-                return Conflict("Dependents");
+                // Setting the ReasonPhrase is no longer supported in HTTP/2. We could be using application/problem+json instead
+                // but that would require a lot of changes in the client code. For now, we are using the X-Particular-Reason header
+                Response.Headers["X-Particular-Reason"] = "Dependents";
+                return StatusCode((int)HttpStatusCode.Conflict, dependents);
             }
 
             collection.Redirects.Add(messageRedirect);
@@ -73,7 +79,7 @@ public async Task<IActionResult> NewRedirects(MessageRedirectRequest request)
                 ToPhysicalAddress = messageRedirect.ToPhysicalAddress
             });
 
-            if (request.retryexisting)
+            if (request.RetryExisting)
             {
                 await session.SendLocal(new RetryPendingMessages
                 {
@@ -84,14 +90,14 @@ public async Task<IActionResult> NewRedirects(MessageRedirectRequest request)
             }
 
             // not using Created here because that would be turned by the HttpNoContentOutputFormatter into a 204
-            return StatusCode((int)HttpStatusCode.Created);
+            return StatusCode((int)HttpStatusCode.Created, messageRedirect);
         }
 
-        [Route("redirects/{messageredirectid:guid}")]
+        [Route("redirects/{messageRedirectId:guid}")]
         [HttpPut]
         public async Task<IActionResult> UpdateRedirect(Guid messageRedirectId, MessageRedirectRequest request)
         {
-            if (string.IsNullOrWhiteSpace(request.tophysicaladdress))
+            if (string.IsNullOrWhiteSpace(request.ToPhysicalAddress))
             {
                 return BadRequest();
             }
@@ -105,7 +111,7 @@ public async Task<IActionResult> UpdateRedirect(Guid messageRedirectId, MessageR
                 return NotFound();
             }
 
-            var toMessageRedirectId = DeterministicGuid.MakeId(request.tophysicaladdress);
+            var toMessageRedirectId = DeterministicGuid.MakeId(request.ToPhysicalAddress);
 
             if (redirects[toMessageRedirectId] != null)
             {
@@ -117,7 +123,7 @@ public async Task<IActionResult> UpdateRedirect(Guid messageRedirectId, MessageR
                 MessageRedirectId = messageRedirectId,
                 PreviousToPhysicalAddress = messageRedirect.ToPhysicalAddress,
                 FromPhysicalAddress = messageRedirect.FromPhysicalAddress,
-                ToPhysicalAddress = messageRedirect.ToPhysicalAddress = request.tophysicaladdress
+                ToPhysicalAddress = messageRedirect.ToPhysicalAddress = request.ToPhysicalAddress
             };
 
             messageRedirect.LastModifiedTicks = DateTime.UtcNow.Ticks;
@@ -129,7 +135,7 @@ public async Task<IActionResult> UpdateRedirect(Guid messageRedirectId, MessageR
             return NoContent();
         }
 
-        [Route("redirects/{messageredirectid:guid}")]
+        [Route("redirects/{messageRedirectId:guid}")]
         [HttpDelete]
         public async Task<IActionResult> DeleteRedirect(Guid messageRedirectId)
         {
@@ -189,15 +195,19 @@ public async Task<IEnumerable<RedirectsQueryResult>> Redirects(string sort, stri
             return queryResult;
         }
 
-        public record class RedirectsQueryResult(Guid MessageRedirectId, string FromPhysicalAddress, string ToPhysicalAddress, DateTime LastModified);
+        public record RedirectsQueryResult(Guid MessageRedirectId, string FromPhysicalAddress, string ToPhysicalAddress, DateTime LastModified);
 
+        // Input models from the API are for some odd reasons not snake cased
         public class MessageRedirectRequest
         {
-#pragma warning disable IDE1006 // Naming Styles
-            public string fromphysicaladdress { get; set; }
-            public string tophysicaladdress { get; set; }
-            public bool retryexisting { get; set; }
-#pragma warning restore IDE1006 // Naming Styles
+            [JsonPropertyName("fromphysicaladdress")]
+            public string FromPhysicalAddress { get; set; }
+
+            [JsonPropertyName("tophysicaladdress")]
+            public string ToPhysicalAddress { get; set; }
+
+            [JsonPropertyName("retryexisting")]
+            public bool RetryExisting { get; set; }
         }
     }
 }
\ No newline at end of file