[Rules] Blank spam detection

1 files changed, 11 insertions, 0 deletions

diff --git a/rules/parts.lua b/rules/parts.lua
new file mode 100644
index 000000000..2be9ff85a
--- /dev/null
+++ b/rules/parts.lua
@@ -0,0 +1,11 @@
+rspamd_config.SINGLE_SHORT_PART = {
+  callback = function(task)
+    local parts = task:get_parts()
+    if #parts ~= 1 then return end
+    local text = parts[1]:get_text()
+    if not text then return end
+    if text:get_length() >= 64 then return end
+    return true
+  end,
+  score = 0.0,
+}