Question Email Notification Option to Delete Instead of Mark As Read

Hi, while enjoying my new Xperia Z2 on the whole, I have one annoyance and that is that the expanded notifications from the corporate email app have the option to mark as read rather than delete as the GMail notifications have.

I can't seem to find an option to change this, does anyone know if it is possible? I have no desire to mark the email as read without reading it and would much prefer to be able to delete useless mails straight from the notification rather than having to open them first.

Cheers

| Sony Ericsson Xperia arc | Samsung Galaxy Nexus |