diff --git a/radicale/app/__init__.py b/radicale/app/__init__.py
index 19cf1e57..3b8d1800 100644
--- a/radicale/app/__init__.py
+++ b/radicale/app/__init__.py
@@ -145,6 +145,8 @@ class Application(ApplicationPartDelete, ApplicationPartHead,
                 if isinstance(answer, str):
                     if self._response_content_on_debug:
                         logger.debug("Response content:\n%s", answer)
+                    else:
+                        logger.debug("Response content: suppressed by config/option [auth] response_content_on_debug")
                     headers["Content-Type"] += "; charset=%s" % self._encoding
                     answer = answer.encode(self._encoding)
                 accept_encoding = [
@@ -191,8 +193,10 @@ class Application(ApplicationPartDelete, ApplicationPartHead,
                     request_method, unsafe_path, depthinfo,
                     remote_host, remote_useragent)
         if self._request_header_on_debug:
-            logger.debug("Request headers:\n%s",
+            logger.debug("Request header:\n%s",
                          pprint.pformat(self._scrub_headers(environ)))
+        else:
+            logger.debug("Request header: suppressed by config/option [auth] request_header_on_debug")
 
         # SCRIPT_NAME is already removed from PATH_INFO, according to the
         # WSGI specification.
diff --git a/radicale/app/base.py b/radicale/app/base.py
index 0a3a27cf..15b5a1df 100644
--- a/radicale/app/base.py
+++ b/radicale/app/base.py
@@ -75,6 +75,8 @@ class ApplicationBase:
             if self._response_content_on_debug:
                 logger.debug("Response content:\n%s",
                              xmlutils.pretty_xml(xml_content))
+            else:
+                logger.debug("Response content: suppressed by config/option [auth] response_content_on_debug")
         f = io.BytesIO()
         ET.ElementTree(xml_content).write(f, encoding=self._encoding,
                                           xml_declaration=True)
diff --git a/radicale/app/put.py b/radicale/app/put.py
index d013c5d5..e30c4e07 100644
--- a/radicale/app/put.py
+++ b/radicale/app/put.py
@@ -149,6 +149,8 @@ class ApplicationPartPut(ApplicationBase):
                 "Bad PUT request on %r (read_components): %s", path, e, exc_info=True)
             if self._log_bad_put_request_content:
                 logger.warning("Bad PUT request content of %r:\n%s", path, content)
+            else:
+                logger.debug("Bad PUT request content: suppressed by config/option [auth] bad_put_request_content")
             return httputils.BAD_REQUEST
         (prepared_items, prepared_tag, prepared_write_whole_collection,
          prepared_props, prepared_exc_info) = prepare(
diff --git a/radicale/httputils.py b/radicale/httputils.py
index 246332ee..a9565293 100644
--- a/radicale/httputils.py
+++ b/radicale/httputils.py
@@ -2,7 +2,8 @@
 # Copyright © 2008 Nicolas Kandel
 # Copyright © 2008 Pascal Halter
 # Copyright © 2008-2017 Guillaume Ayoub
-# Copyright © 2017-2018 Unrud <unrud@outlook.com>
+# Copyright © 2017-2022 Unrud <unrud@outlook.com>
+# Copyright © 2024-2024 Peter Bieringer <pb@bieringer.de>
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -144,6 +145,8 @@ def read_request_body(configuration: "config.Configuration",
                              read_raw_request_body(configuration, environ))
     if configuration.get("logging", "request_content_on_debug"):
         logger.debug("Request content:\n%s", content)
+    else:
+        logger.debug("Request content: suppressed by config/option [auth] request_content_on_debug")
     return content
 
 
diff --git a/radicale/log.py b/radicale/log.py
index 59473644..313b4933 100644
--- a/radicale/log.py
+++ b/radicale/log.py
@@ -1,6 +1,7 @@
 # This file is part of Radicale - CalDAV and CardDAV server
 # Copyright © 2011-2017 Guillaume Ayoub
-# Copyright © 2017-2019 Unrud <unrud@outlook.com>
+# Copyright © 2017-2023 Unrud <unrud@outlook.com>
+# Copyright © 2024-2024 Peter Bieringer <pb@bieringer.de>
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by