Thx for the reply. We want to configure the body part, not the subject.
As you can see I pasted the body part of the plain text email.
All the lines have heading (example=Target:) but not the alarm detail part at the end.
We need to add Event Detail: or Detail: to the beginning of the last line of body.
It could be nice to configure all body message and add/remove parameters as we want in the future.