Lua Modules

It's possible to write your own modules using Lua. You can do so by adding to the configuration:

[luaModule "something"]
enabled = true
script = ./lua/something.lua

Following the configuration above, it will register the module as lua-something internally.

This script outlines all the available calls that are available:

function milterCheck(message)

    print(message:getFrom())
    print(message:getQueueId())

    for i,v in pairs(message:getRcpt()) do
        print(v)
    end

    print("Headers:")
    for i,v in pairs(message:getHeaders()) do
        print(v:getKey())
        print(v:getValue())
        print("")
    end

    print("Body:")
    print(message:getBody())

    -- score must be one of PERMIT, TEMPFAIL, REJECT, ERROR.
    -- Second and third argument are the rejection message and score. 
    return "REJECT", "We think it's spam!", 2.00
end