From 06db1d6a72ce65cd5e464eab7f2b1970da555b49 Mon Sep 17 00:00:00 2001
From: Dmitriy Alekseev <1865999+dragoangel@users.noreply.github.com>
Date: Fri, 5 Sep 2025 03:37:59 +0200
Subject: [PATCH] [Rspamd] Do not increment rate limit for emails from user to
 himself (#6706)

* [Rspamd] Do not increment rate limit for emails from user to himself

* Lowercase username and recipient address for comparison

Normalize username and recipient address comparison to lowercase.
---
 data/conf/rspamd/lua/rspamd.local.lua | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/data/conf/rspamd/lua/rspamd.local.lua b/data/conf/rspamd/lua/rspamd.local.lua
index 5fe66f75f..2bf328e5b 100644
--- a/data/conf/rspamd/lua/rspamd.local.lua
+++ b/data/conf/rspamd/lua/rspamd.local.lua
@@ -454,12 +454,18 @@ rspamd_config:register_symbol({
     local redis_params = rspamd_parse_redis_server('dyn_rl')
     local rspamd_logger = require "rspamd_logger"
     local envfrom = task:get_from(1)
+    local envrcpt = task:get_recipients(1) or {}
     local uname = task:get_user()
     if not envfrom or not uname then
       return false
     end
+
     local uname = uname:lower()
 
+    if #envrcpt == 1 and envrcpt[1].addr:lower() == uname then
+      return false
+    end
+
     local env_from_domain = envfrom[1].domain:lower() -- get smtp from domain in lower case
 
     local function redis_cb_user(err, data)