Are you talking about clicking a link in the email and then sending something back to Aware Chris?
If so, I think it is not doable.
I tried to do it via a webservice from an email and could not get it to work and everything I read about it kept telling
me that indeed it should not be allowed as it creates a security breach.
From what I have seen is then only way is to send an email back to Aware with some code in the Subject line which
is read by Aware. That is doable but the problem is the reliance on the email recipient sending back the correct thing in
the subject line.
Alternatively is having a link in the email that will open a browser and login to the app with predefined credentials. This is
also doable but not recommended as it exposes the login details.