posibility to change the url in notifications

The standard template creates a link to the last build where the user can shows whats up.

It seams that this link is created from some configurations like server address and so on.

But in any cases (like intranet) the server runs on localhost whith apache as a proxy and then the generated url points to localhost:xy which is a unuseable link for the notified user.

In my mind there should be a way to change this behavior:

1. change a "mail template"
2. add a property in the mail configuration to change the link and using this property instead of the server configuration (the server configuration can be the fall back).