diff --git a/pydantic/networks.py b/pydantic/networks.py
index 693f40c234b..0c310ddb18f 100644
--- a/pydantic/networks.py
+++ b/pydantic/networks.py
@@ -164,12 +164,12 @@ def import_email_validator() -> None:
         import email_validator
     except ImportError as e:
         raise ImportError('email-validator is not installed, run `pip install pydantic[email]`') from e
-    if hasattr(email_validator, "__version__") and email_validator.__version__.partition(".")[0] == "2":
+    if hasattr(email_validator, '__version__') and email_validator.__version__.partition('.')[0] == '2':
         return
     else:
-        input_email = b"testaddr@example.tld"
-        valid_email = validate_email(input_email, check_deliverability=False)
-        if not hasattr(valid_email, "normalized"):
+        input_email = 'testaddr@example.tld'
+        valid_email = validate_email(input_email)
+        if not hasattr(valid_email, 'normalized'):
             raise ImportError('email-validator version >= 2.0 required')