Nice bit of data (and a link to a script) that shows roughly how much of this person’s email ended up on a Google server at some point.

For almost 15 years, I have run my own email server which I use for all of my non-work correspondence. I do so to keep autonomy, control, and privacy over my email and so that no big company has copies of all of my personal email.

[…]

Since our conversation, I have often wondered just how much of my email Google really has. This weekend, I wrote a small program to go through all the email I have kept in my personal inbox since April 2004 (when GMail was started) to find out.

[…]

From eyeballing the graph, the answer to seems to be that, although it varies, about a third of the email in my inbox comes from Google!

I’ve run my own email sever for many years as well, for some of the same reasons, and it’s a little disappointing to consider that it really doesn’t make a whole lot of difference.