Comala Workflows - Review rejected triggers e-mail to user who assigned the review

[Marcel Gaßmann]

Dear community,

I hope you can help me with my workflow problem or show me that it isn't possible =)

As the topic states, I am trying to get Comala Workflows to send an e-mail via a trigger in the workflow when a review/page is rejected to the user who assigned the review within Confluence.

Code-Excerpt for the trigger

    {trigger:pagerejected|approval=Review}
        {send-email:user=@author@|subject=Page rejected}
        The page @page@ has been rejected by [~@user@]
        {pageactivity}
        {send-email}
    {trigger}

 The main problem is "only" the user, who should receive the e-mail, I tried some solutions like

{send-email:user=@Review>approver@|subject=Page rejected}

with no success.

Maybe someone of you has built such a trigger or can just push me in a general direction for finding a solution.

Thanks in advance and best regards,

Marcel