Author: Peter Galbavy Date: To: exim-users Subject: Re: [Exim] exim3.36 / authenticated_id and queuing
> Yup. Notice that it complained about a failing expansion of "${if" (i.e. > a truncated expression).
>
> For pipe commands, each argument is separately expanded. This is so that
> the results of the expansion cannot affect the division of the command
> into arguments. This is particularly relevant when you are sticking data
> from outside sources (e.g. $local_part) into commands.