That is also a reality in the private sector as well for both email and file storage. I've been drug through a few electronic records production efforts and it is not pleasant. Most corporations have record retention policies and prefer to get rid of all electronic documentation as soon as allowed by either statute or regulatory compliance. Just for fun, throw in different data privacy, data ingress and data egress policies for different countries, states and local jurisdictions and it is a nightmare.
...and those discard policies are a serious pain in regards technical notes and legacy equipment. First they make you go paperless, then they start auto deleting everything older than 3 years that isn’t part of the main manual system.