fixed imports in mail_intake

mail_intake/__init__.py

@@ -109,12 +109,12 @@ shortcuts.
 """
 
 
-import ingestion
-import adapters
-import auth
-import models
-import config
-import exceptions
+from . import ingestion
+from . import adapters
+from . import auth
+from . import models
+from . import config
+from . import exceptions
 
 __all__ = [
     "ingestion",