diff --git a/stdlib/@tests/stubtest_allowlists/common.txt b/stdlib/@tests/stubtest_allowlists/common.txt
index 074bc9367..6a6fb1354 100644
--- a/stdlib/@tests/stubtest_allowlists/common.txt
+++ b/stdlib/@tests/stubtest_allowlists/common.txt
@@ -578,6 +578,7 @@ codecs.StreamRecoder.\w+
 urllib.response.addbase.\w+
 
 # __all__-related weirdness (see #6523)
+email.__all__
 email.base64mime
 email.charset
 email.encoders
diff --git a/stdlib/email/__init__.pyi b/stdlib/email/__init__.pyi
index fca302f5f..f564ced10 100644
--- a/stdlib/email/__init__.pyi
+++ b/stdlib/email/__init__.pyi
@@ -4,6 +4,29 @@ from email.policy import Policy
 from typing import IO
 from typing_extensions import TypeAlias
 
+# At runtime, listing submodules in __all__ without them being imported is
+# valid, and causes them to be included in a star import. See #6523
+
+__all__ = [  # noqa: F822  # Undefined names in __all__
+    "base64mime",  # pyright: ignore[reportUnsupportedDunderAll]
+    "charset",  # pyright: ignore[reportUnsupportedDunderAll]
+    "encoders",  # pyright: ignore[reportUnsupportedDunderAll]
+    "errors",  # pyright: ignore[reportUnsupportedDunderAll]
+    "feedparser",  # pyright: ignore[reportUnsupportedDunderAll]
+    "generator",  # pyright: ignore[reportUnsupportedDunderAll]
+    "header",  # pyright: ignore[reportUnsupportedDunderAll]
+    "iterators",  # pyright: ignore[reportUnsupportedDunderAll]
+    "message",  # pyright: ignore[reportUnsupportedDunderAll]
+    "message_from_file",
+    "message_from_binary_file",
+    "message_from_string",
+    "message_from_bytes",
+    "mime",  # pyright: ignore[reportUnsupportedDunderAll]
+    "parser",  # pyright: ignore[reportUnsupportedDunderAll]
+    "quoprimime",  # pyright: ignore[reportUnsupportedDunderAll]
+    "utils",  # pyright: ignore[reportUnsupportedDunderAll]
+]
+
 # Definitions imported by multiple submodules in typeshed
 _ParamType: TypeAlias = str | tuple[str | None, str | None, str]  # noqa: Y047
 _ParamsType: TypeAlias = str | None | tuple[str, str | None, str]  # noqa: Y047
@@ -12,18 +35,3 @@ def message_from_string(s: str, _class: Callable[[], Message] = ..., *, policy:
 def message_from_bytes(s: bytes | bytearray, _class: Callable[[], Message] = ..., *, policy: Policy = ...) -> Message: ...
 def message_from_file(fp: IO[str], _class: Callable[[], Message] = ..., *, policy: Policy = ...) -> Message: ...
 def message_from_binary_file(fp: IO[bytes], _class: Callable[[], Message] = ..., *, policy: Policy = ...) -> Message: ...
-
-# Names in __all__ with no definition:
-#   base64mime
-#   charset
-#   encoders
-#   errors
-#   feedparser
-#   generator
-#   header
-#   iterators
-#   message
-#   mime
-#   parser
-#   quoprimime
-#   utils