​Hi,

On http://wiki.contextgarden.net/url#Overview is stated:

> You can use
>
> \url[aurl]
>
> as well, which behaves like \from[#1].
>
I may be wrong to interpret \url a synonym of \from based on the
documentation, as \from has only one parameter though. Test:

\useURL[author_email][mailto:invalid@invalid.invalid][][A Name]
>
> \setupinteraction[state=start]
> \starttext
>
>     \from[author_email]
>     \url[author_email]
>
> \stoptext
>

The first URL has 'A Name' as title and is clickable, the second one the
e-mail address and is not clickable.

Best,
Sander