You’re correct there is currently no way to do that. I’d like to get a little more clarification on what you’d like to do. So when a support request comes in after hours you’d like the notification that goes out to staff (if you have notification enabled for new requests) to potentially go to a different email address than your primary address right? For example, after hours it may go to your yahoo account instead of your business account?
This is definitely something we’ll consider for a future release.
In the meantime I see a few options. First, I think you’re correct that it would probably be fairly straight forward to do something in SQL Server or an external script to create this functionality.
Another option you may want to consider is using the built in RSS feeds for this purpose. I don’t know if you already use an RSS reader, but there are many quality free ones. This is how we keep up with all our after hours support and often even our daytime support.