​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