Sort of like the way "heraldic missives" are sent out. Having an echo when you send a letter to someone or a cabal would be cool.

I could be playing and someone sends in an application to the cabal I'm playing, then I could interview them during that session (because I rarely check my notes during my gameplay, usually only at the beginning of a session). And seeing a letter arrive while I'm playing, I could respond to it sooner as opposed to waiting until the next log in to see it.

I could see some minor benefits to something like this.