diff --git a/docs/topics/settings.rst b/docs/topics/settings.rst
index 75e213fc0..4bf3780bf 100644
--- a/docs/topics/settings.rst
+++ b/docs/topics/settings.rst
@@ -1644,21 +1644,6 @@ Default: ``False``
 
 Whether to enable memory debugging.
 
-.. setting:: MEMDEBUG_NOTIFY
-
-MEMDEBUG_NOTIFY
----------------
-
-Default: ``[]``
-
-When memory debugging is enabled a memory report will be sent to the specified
-addresses if this setting is not empty, otherwise the report will be written to
-the log.
-
-Example::
-
-    MEMDEBUG_NOTIFY = ['user@example.com']
-
 .. setting:: MEMUSAGE_ENABLED
 
 MEMUSAGE_ENABLED
diff --git a/scrapy/settings/default_settings.py b/scrapy/settings/default_settings.py
index 3a7dfd018..d283336ab 100644
--- a/scrapy/settings/default_settings.py
+++ b/scrapy/settings/default_settings.py
@@ -154,7 +154,6 @@ __all__ = [
     "MAIL_TLS",
     "MAIL_USER",
     "MEMDEBUG_ENABLED",
-    "MEMDEBUG_NOTIFY",
     "MEMUSAGE_CHECK_INTERVAL_SECONDS",
     "MEMUSAGE_ENABLED",
     "MEMUSAGE_LIMIT_MB",
@@ -470,7 +469,6 @@ MAIL_SSL = False
 MAIL_TLS = False
 
 MEMDEBUG_ENABLED = False  # enable memory debugging
-MEMDEBUG_NOTIFY = []  # send memory debugging report by mail at engine shutdown
 
 MEMUSAGE_ENABLED = True
 MEMUSAGE_CHECK_INTERVAL_SECONDS = 60.0