fix

tests/test_email.py

@@ -35,7 +35,7 @@ def check_listen() -> tuple:
     status, out = subprocess.getstatusoutput("ss -pant | grep master | grep ':25'")
 
     if status != 0 or ("127.0.0.1:25" not in out and "[::1]:25" not in out):
-        u.warnings("Postfix is not listening on localhost:25")
+        u.warning("Postfix is not listening on localhost:25")
         warnings += 1
     else:
         u.success("Postfix is listening on localhost:25")