diff --git a/crates/integration-tests/source.lua b/crates/integration-tests/source.lua
index b7e51ee8..ae3fb1f7 100644
--- a/crates/integration-tests/source.lua
+++ b/crates/integration-tests/source.lua
@@ -26,6 +26,7 @@ kumo.on('init', function()
   if WEBHOOK_PORT then
     kumo.configure_log_hook {
       name = 'webhook',
+      headers = { 'Subject', 'X-*' },
     }
   end
 
diff --git a/crates/integration-tests/src/main.rs b/crates/integration-tests/src/main.rs
index 540abac6..b3391e97 100644
--- a/crates/integration-tests/src/main.rs
+++ b/crates/integration-tests/src/main.rs
@@ -13,9 +13,11 @@ mod test {
     use anyhow::Context;
     use k9::assert_equal;
     use kumo_api_types::SuspendV1Response;
+    use kumo_log_types::RecordType;
     use kumo_log_types::RecordType::{Bounce, Delivery, Reception, TransientFailure};
     use mailparsing::DecodedBody;
     use rfc5321::*;
+    use std::collections::BTreeMap;
     use std::time::Duration;
 
     #[tokio::test]
@@ -823,6 +825,27 @@ Ok(
 "
         );
 
+        let mut logged_headers = vec![];
+        for record in daemon.webhook.return_logs() {
+            if record.kind == RecordType::Reception {
+                let ordered_headers: BTreeMap<_, _> = record.headers.into_iter().collect();
+                logged_headers.push(ordered_headers);
+            }
+        }
+        k9::snapshot!(
+            logged_headers,
+            r#"
+[
+    {
+        "Subject": String("Hello! This is a test"),
+        "x-another": String("Another"),
+        "x-kumoref": String("eyJfQF8iOiJcXF8vIiwicmVjaXBpZW50IjoicmVjaXBAZXhhbXBsZS5jb20ifQ=="),
+        "x-test1": String("Test1"),
+    },
+]
+"#
+        );
+
         let mut messages = daemon.with_maildir.extract_maildir_messages()?;
 
         assert_equal!(messages.len(), 1);
diff --git a/crates/integration-tests/src/webhook.rs b/crates/integration-tests/src/webhook.rs
index d44da973..aca53a2b 100644
--- a/crates/integration-tests/src/webhook.rs
+++ b/crates/integration-tests/src/webhook.rs
@@ -71,6 +71,10 @@ impl WebHookServer {
         }
         Ok(counts)
     }
+
+    pub fn return_logs(&self) -> Vec<JsonLogRecord> {
+        (*self.records.lock().unwrap()).clone()
+    }
 }
 
 async fn log_record(
diff --git a/crates/kumo-log-types/src/lib.rs b/crates/kumo-log-types/src/lib.rs
index bb749780..22673b03 100644
--- a/crates/kumo-log-types/src/lib.rs
+++ b/crates/kumo-log-types/src/lib.rs
@@ -39,7 +39,7 @@ pub enum RecordType {
     Any,
 }
 
-#[derive(Serialize, Deserialize, Debug)]
+#[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct JsonLogRecord {
     /// What kind of record this is
     #[serde(rename = "type")]