The problem is today the emails are to static, and we are not able to put our own touch to it.

It would be fantastic if we were able to change the templates for the mails that are send when we update an issue and when you create an issue by email.

I would like it to be able to setup with variables:

An example could be:
Hi %name%

Your ticket has been created with %subject%

The ticket has been assigned to %USER% ...

So you would have a long list of variables you could use:
%subject%
%type%
%status%
and so on.

It could also be awesome if you could put a 'search issue' into the mail, so you for example would be able to show the user the last 5 ticket the user has created.