From 2c4bd500587f5f01c6458170d67e05d488535942 Mon Sep 17 00:00:00 2001
From: Timothy Allen <tim@treehouse.org.za>
Date: Tue, 6 Mar 2018 20:57:28 +0200
Subject: [PATCH] Allow the multimap header type to be a list of headers as
 well as a single header.

---
 src/plugins/lua/multimap.lua | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/plugins/lua/multimap.lua b/src/plugins/lua/multimap.lua
index 60324fac1..c89436dd1 100644
--- a/src/plugins/lua/multimap.lua
+++ b/src/plugins/lua/multimap.lua
@@ -708,8 +708,15 @@ local function multimap_callback(task, rule)
       end
     end,
     header = function()
-      local hv = task:get_header_full(rule['header'])
-      match_list(rule, hv, {'decoded'})
+      if type(rule['header']) == 'table' then
+        for _,rh in ipairs(rule['header']) do
+          local hv = task:get_header_full(rh)
+          match_list(rule, hv, {'decoded'})
+        end
+      else
+        local hv = task:get_header_full(rule['header'])
+        match_list(rule, hv, {'decoded'})
+      end
     end,
     rcpt = function()
       if task:has_recipients('smtp') then
-- 
2.39.5