hdr22@clintonemail.com Does that mean that hdr has 21 OTHER email boxes registered at clintonemail.com? Methinks it does, and somebody had better check that. I hope Gowdy subpoenas the whole secret server and records about what the Clinton machine did with any previous servers, since this situation dates back to at least 1000, and it’s likely that one (or more) servers have died in those 15 years.
That should say that the situation dates back to 2000.
It makes sense if you are sharing access to an email account with other people. Each of those other people shares access to one of the 22 (or maybe more) email accounts along with Hillary. That way Hillary and one person can leave unsent drafts in a folder which only those two have access to. Hillary and a second person could use the same procedure with a different email address only those two access.
Criminal enterprises use this method of communicating.