driver = accept
local_parts = userx
headers_add = "${if def:h_x-rbl-warning: {Added: xxxx}fail}"
- headers_remove = "${if def:h_x-rbl-warning: {subject}fail}"
+ # Colon-sep list!
+ headers_remove = "${if def::h_x-rbl-warning:: {subject}fail}"
transport = local_delivery