diff --git a/autoreply_editor/main.py b/autoreply_editor/main.py
index 08bc9ba..21eaf73 100644
--- a/autoreply_editor/main.py
+++ b/autoreply_editor/main.py
@@ -49,16 +49,13 @@ def qmail_status(user):
         return False
 
 
-def check_user(user, output=False):
+def check_user(user):
     """Check if user exists"""
     fulluser = [item for item in app.config.get("USERS") if item[1].split('@')[0] == user]
     if not fulluser:
         return False
     else:
-        if output:
-            return fulluser[0]
-        else:
-            return True
+        return fulluser[0]
 
 
 def get_messagefile(user):
@@ -89,9 +86,9 @@ def get_filterfile(user):
             os.path.join(app.root_path, "templates/filterfile.j2"), encoding="utf-8"
         ) as template:
             filterconfig = Template(template.read()).render(
-                email=check_user(user, output=True)[1],
+                email=check_user(user)[1],
                 user=user,
-                name=check_user(user, output=True)[0],
+                name=check_user(user)[0],
                 messagefile=get_messagefile(user),
             )