This is a good idea. I faced the issue that on one site alone, I used up 3 of the 5 free email relay addresses. I clicked to use the ONE that I knew I'd setup initially, then went to next line in enter a p/w and r clicked use a second, and finally seeing that the first entry was not my initial relay address> I right clicked using up the last of the five. Now, I hope that deleting all 3 will return those to the fold, since not a ONE of them was actually used. My thought was that you generated a relay and that it was open until I closed it, thus to be used as needed so my real address was kept away from places that didn't really need it.