No link to story available
Paul Combetta, the IT guy who used BleachBit to wipe email servers for Hillary Clinton, went on Reddit in July 2014 and asked this question:
Remove or replace to/from address on archived emails?
Hello all- I may be facing a very interesting situation where I need to strip out a VIP's (VERY VIP) email address from a bunch of archived email that I have both in a live Exchange mailbox, as well as a PST file. Basically, they don't want the VIP's email address exposed to anyone, and want to be able to either strip out or replace the email address in the to/from fields in all of the emails we want to send out.
Paul Combatta was given immunity [nytimes.com] by the Justice Department.
If you check the timeline [sharylattkisson.com] you find that in July 2014 there were outstanding FOIA requests but Congress had not yet subpoenaed the email server.
https://www.reddit.com/r/conspiracy/comments/53h8vk/evidence_of_hillarys_it_guy_paul_combetta_asking/ [reddit.com]
One of the commenters on the Reddit thread said: "If there was a feature in Exchange that allowed this, it could result in major legal issues."