From e07402367df5174f5c6650723588458c5eaf861f Mon Sep 17 00:00:00 2001
From: Alexander Moisseev <moiseev@mezonplus.ru>
Date: Tue, 2 Aug 2016 11:26:49 +0300
Subject: [PATCH] [Fix] Ignore content type/subtype case

to comply with RFC 2045
---
 src/plugins/lua/mime_types.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/lua/mime_types.lua b/src/plugins/lua/mime_types.lua
index 1395149b6..e1b2123f4 100644
--- a/src/plugins/lua/mime_types.lua
+++ b/src/plugins/lua/mime_types.lua
@@ -147,7 +147,7 @@ local function check_mime_type(task)
       else
         -- Check for attachment
         local filename = p:get_filename()
-        local ct = string.format('%s/%s', mtype, subtype)
+        local ct = string.format('%s/%s', mtype, subtype):lower()
 
         if filename then
           filename = filename:gsub('[^%s%g]', '?')
-- 
2.39.5