Ad blocker detected: Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker on our website.
..Ok - as for now, I just added some code to the view file for the write screen replacing the ['form'] value with the actual user's email adress, which works fine. (The usual Joomla thing ...$some = &JFactory::getUser(); and then r['form'] = $some->email; ) around line 100.
/views/phocaemailwrite/view.html.php
I'm not a programmer, so maybe not the best place, but it works now - before that I always had the superadmin email in the field.