Improve cleanup logic

src/ddns_service/cleanup.py

@@ -74,12 +74,15 @@ def cleanup_expired(app):
                         f"zone={hostname.zone} type=AAAA error={e}"
                     )
 
+        if not (ipv4_deleted or ipv6_deleted):
+            continue
+
         if app.email_service:
             app.email_service.send_expiry_notification(
                 hostname.user.email,
                 hostname,
-                ipv4_expired,
-                ipv6_expired
+                ipv4_deleted,
+                ipv6_deleted
             )
 
         # Clear IP addresses only if DNS delete succeeded
@@ -88,7 +91,6 @@ def cleanup_expired(app):
         if ipv6_deleted:
             hostname.last_ipv6 = None
 
-        if ipv4_deleted or ipv6_deleted:
         hostname.save()
         expired_count += 1