Re: [exim] Feature Request

Marc Perkel wrote:
> Like to have a feature like add_header called perhaps add_unique_header
> which will only add the header if that header isn't already there.

I'd like to grow wings on my back so I that could fly to work. Doesn't
mean it's going to happen.

In the interim, RTFM ${if} and the def:h_ condition.

- Marc