From 97a492b891fde855293563fa4755d91a06ac06b2 Mon Sep 17 00:00:00 2001
From: FreddleSpl0it <patschul@posteo.de>
Date: Wed, 3 May 2023 15:04:09 +0200
Subject: [PATCH] [Rspamd] add dot-stuffing to bcc forwarding

---
 data/conf/rspamd/lua/rspamd.local.lua | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/data/conf/rspamd/lua/rspamd.local.lua b/data/conf/rspamd/lua/rspamd.local.lua
index 6318bd23..5b08dc93 100644
--- a/data/conf/rspamd/lua/rspamd.local.lua
+++ b/data/conf/rspamd/lua/rspamd.local.lua
@@ -340,6 +340,10 @@ rspamd_config:register_symbol({
       if not bcc_dest then
         return -- stop
       end
+      -- dot stuff content before sending
+      local email_content = tostring(task:get_content())
+      email_content = string.gsub(email_content, "\r\n%.", "\r\n..")
+      -- send mail
       lua_smtp.sendmail({
         task = task,
         host = os.getenv("IPV4_NETWORK") .. '.253',
@@ -347,8 +351,8 @@ rspamd_config:register_symbol({
         from = task:get_from(stp)[1].addr,
         recipients = bcc_dest,
         helo = 'bcc',
-        timeout = 10,
-      }, task:get_content(), sendmail_cb)
+        timeout = 20,
+      }, email_content, sendmail_cb)
     end
 
     -- determine from