My point was that she may have assigned emails from her server (there are at least 22 different email addresses found so far originating from her server) and other people logged in to those email addresses and and they exchanged email that way. Since she had complete control over her server, any of those correspondences could have been deleted and not retrievable.
Look up home brew server and you'll see how that is set up and how easy it is to delete every trace of what you sent and received.
Or looking through what they already have.
The House and Senate committees on Benghazi must have subpoenaed a lot of State Dept. employees e-mails and texts already. Then there is Gowdy's Benghazi committee. Then there are several other investigative committees who did a lot of subpoenaing in the past six years. All they need is one that she can produce no match for.
...she may have assigned emails from her server ... and other people logged in to those email addresses...
I got that point. That's just a 'maybe.' A very doubtful 'maybe.'