Comment by bArray

> Delete old emails and pictures as data centres require vast amounts of water to cool their systems.

Let's ignore that most emails will be in semi-cold storage. Let's ignore that energy usage per email would be absolutely minimum. Did they not consider that thousands of people hitting the email servers requesting to view and then subsequently delete emails, wouldn't be an issue?

What I (tongue-in-cheek) suspect is that GCHQ and the like are having difficulty in searching so many emails. Maybe by reviewing the email it triggers a filter policy which aids in searching them. After all, the Online Safety Act mostly seems to be targetting data in transit.