Enumerate a drop down with your addresses. Right next to the list box
insert a Hyperlink control. In the Hyperlink control properties dialog, set
the "Link to" section to "Data Source". Use the following XPath:
concat("mailto:", my:EmailDropDown, "@company.com").
This will prepend the 'mailto:' protocol to the aliases listed in the drop
down and append them with '@company.com'.
In the "Display" section of the dialog, select "Data Source" and use
my:EmailDropDown as your source node.
Now when a user selects an alias, the email address will be populated in the
Hyperlink box and the user can click on that to launch their default email
editor.
--josh bertsch