[Minor] Lowercase dkim domain for signing

diff --git a/src/plugins/lua/dkim_signing.lua b/src/plugins/lua/dkim_signing.lua
index 105ecf63b74738542ab19527de41c3cb7dd8f521..e58f9cde53aaf375d0916dbffff0901e63cb2459 100644 (file)
--- a/src/plugins/lua/dkim_signing.lua
+++ b/src/plugins/lua/dkim_signing.lua
@@ -115,6 +115,7 @@ local function dkim_signing_cb(task)
     end
   end
   local p = {}
+  dkim_domain = dkim_domain:lower()
   if settings.domain[dkim_domain] then
     p.selector = settings.domain[dkim_domain].selector
     p.key = settings.domain[dkim_domain].path