diff --git a/data/conf/rspamd/local.d/mime_types.conf b/data/conf/rspamd/local.d/mime_types.conf
new file mode 100644
index 00000000..6a5ed408
--- /dev/null
+++ b/data/conf/rspamd/local.d/mime_types.conf
@@ -0,0 +1,34 @@
+# Extensions that are treated as 'bad'
+# Number is score multiply factor
+bad_extensions = {
+  scr = 4,
+  lnk = 4,
+  exe = 1,
+  jar = 2,
+  com = 4,
+  bat = 4,
+  ace = 4,
+  arj = 4,
+  cab = 3,
+};
+
+# Extensions that are particularly penalized for archives
+bad_archive_extensions = {
+  pptx = 0.5,
+  docx = 0.5,
+  xlsx = 0.5,
+  pdf = 1.0,
+  jar = 3,
+  js = 0.5,
+  vbs = 7,
+};
+
+# Used to detect another archive in archive
+archive_extensions = {
+  zip = 1,
+  arj = 1,
+  rar = 1,
+  ace = 1,
+  7z = 1,
+  cab = 1,
+};