I'm registered on the trilogy sites using a personal email address, which will be mine forever and which has a gravatar associated with it.

Right now though, I'm at work, with limited access to my personal email (via phone only).

I've just asked a question about something at work, and I'd like notifications to come to my work email, but when I enter the work email address in the notify textbox, it over-writes the personal email I used when registering.

Is it possible to use a separate email for the notifications? If not, why not? It's a bit of a jump to assume that you want to change your email, especially as this causes the gravatar to disappear.