diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1c8a252..a827cd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,7 +60,9 @@ jobs:
           command: build
           args: --verbose --all-features
       - name: Run the integration test
-        run: ./tests/start_test.py
+        run: ./tests/start_test.py "simple/simple"
+      - name: Run the integration test
+        run: ./tests/start_test.py "relaxed/relaxed"
   cargo-fmt:
     name: Cargo fmt
     runs-on: ubuntu-latest
diff --git a/tests/start_test.py b/tests/start_test.py
index 0ce49b3..3478e55 100755
--- a/tests/start_test.py
+++ b/tests/start_test.py
@@ -214,10 +214,12 @@ def start_tests(test_dir, smtp_port, canonicalization):
 
 
 def main():
+    method = "relaxed/relaxed"
+    if len(sys.argv) > 1:
+        method = sys.argv[1]
     test_dir = pathlib.Path(__file__).parent.resolve()
     os.chdir(test_dir.parent)
-    start_tests(test_dir, DEFAULT_PORT, "simple/simple")
-    start_tests(test_dir, DEFAULT_PORT, "relaxed/relaxed")
+    start_tests(test_dir, DEFAULT_PORT, method)
 
 
 if __name__ == "__main__":