diff --git a/pep_sphinx_extensions/tests/pep_zero_generator/test_writer.py b/pep_sphinx_extensions/tests/pep_zero_generator/test_writer.py
index 1ccf8c4186a..3237dfb0562 100644
--- a/pep_sphinx_extensions/tests/pep_zero_generator/test_writer.py
+++ b/pep_sphinx_extensions/tests/pep_zero_generator/test_writer.py
@@ -56,6 +56,23 @@ def test_verify_email_addresses(test_input, expected):
     assert out == expected
 
 
+def test_verify_email_addresses_multiple_emails():
+    # Arrange
+    peps = [
+        parser.PEP(Path("pep_sphinx_extensions/tests/peps/pep-9000.rst")),
+        parser.PEP(Path("pep_sphinx_extensions/tests/peps/pep-9003.rst")),
+    ]
+
+    # Act
+    out = writer._verify_email_addresses(peps)
+
+    # Assert: Francis has two emails combined, Javier's single email is not duplicated
+    assert out == {
+        "Francis Fussyreverend": "one@example.com, different@example.com",
+        "Javier Soulfulcommodore": "two@example.com",
+    }
+
+
 def test_sort_authors():
     # Arrange
     authors_dict = {
diff --git a/pep_sphinx_extensions/tests/peps/pep-9003.rst b/pep_sphinx_extensions/tests/peps/pep-9003.rst
new file mode 100644
index 00000000000..73817501d51
--- /dev/null
+++ b/pep_sphinx_extensions/tests/peps/pep-9003.rst
@@ -0,0 +1,7 @@
+PEP: 9003
+Title: Test with author using a different email than in PEP 9000
+Author: Francis Fussyreverend <different@example.com>,
+        Javier Soulfulcommodore <two@example.com>
+Created: 20-Apr-2022
+Status: Draft
+Type: Process