btb:
> in the postconf(5) documentation, the format section says:
>
> The expressions "${name:value}" and "${name?{value}}" are replaced with
> "value" when "$name" is empty. These forms are supported with Postfix
> versions ? 2.2 and ? 3.0, respectively.
>
> should the ? in "${name?{value}}" be a :?
Yes. This was corrected in Postfix 3.1.
Wietse
