diff --git a/client/src/telethon/_impl/mtsender/reconnection.py b/client/src/telethon/_impl/mtsender/reconnection.py
index 363aad6d..20e38777 100644
--- a/client/src/telethon/_impl/mtsender/reconnection.py
+++ b/client/src/telethon/_impl/mtsender/reconnection.py
@@ -10,16 +10,15 @@ class ReconnectionPolicy(ABC):
     """
 
     @abstractmethod
-    def should_retry(self, attempts: int) -> bool | float:
+    def should_retry(self, attempts: int) -> float | None:
         """
         Determines whether the client should retry the connection attempt.
         """
-        pass
 
 
 class NoReconnect(ReconnectionPolicy):
-    def should_retry(self, attempts: int) -> bool:
-        return False
+    def should_retry(self, attempts: int) -> float | None:
+        return None
 
 
 class FixedReconnect(ReconnectionPolicy):
@@ -29,8 +28,8 @@ class FixedReconnect(ReconnectionPolicy):
         self.max_attempts = attempts
         self.delay = delay
 
-    def should_retry(self, attempts: int) -> bool | float:
+    def should_retry(self, attempts: int) -> float | None:
         if attempts < self.max_attempts:
             return self.delay
 
-        return False
+        return None
diff --git a/client/src/telethon/_impl/mtsender/sender.py b/client/src/telethon/_impl/mtsender/sender.py
index f9b8c1f5..bdfa5e96 100644
--- a/client/src/telethon/_impl/mtsender/sender.py
+++ b/client/src/telethon/_impl/mtsender/sender.py
@@ -310,10 +310,8 @@ class Sender:
 
                 delay = self._reconnection_policy.should_retry(attempts)
 
-                if delay:
-                    if delay is not True:
-                        await asyncio.sleep(delay)
-                    continue
+                if delay is not None:
+                    await asyncio.sleep(delay)
                 else:
                     self._logger.error(
                         f"auto-reconnect failed {attempts} time(s); giving up"