diff --git a/npiai/tools/shared_types/base_email_tool.py b/npiai/tools/shared_types/base_email_tool.py
index 0830ea1c..746178f9 100644
--- a/npiai/tools/shared_types/base_email_tool.py
+++ b/npiai/tools/shared_types/base_email_tool.py
@@ -31,7 +31,7 @@ class BaseEmailTool(FunctionTool):
     @abstractmethod
     def list_inbox_stream(
         self,
-        limit: int = 10,
+        limit: int = -1,
         query: str = None,
     ) -> AsyncGenerator[EmailMessage, None]:
         pass