I have followed numerous discussions on here lately regarding extracting oneself from being Google-reliant, and they've all deeply resonated with me. For years now I've been slowly migrating numerous Google-bound things over to my own self-hosted alternatives. I've moved my storage, contacts, documents, and some (but sadly not all) of my calendars to home solutions, fairly easily too.

But the biggest hurdle I've been facing this whole time, the one I've been putting off the longest, is the act of figuring out how to get almost twenty years of mail archive and history on my primary account away from Google and into a space where I can access it separately. I have been steadily changing the main email on my more active external accounts to a self-hosted one, and now only seeing a shrinking handful of lesser-used services still attached to the old gmail. But that history is too precious to me, and I still find multiple occasions where I need/want to reference some communications from long ago.

I've tried searching the web for options, but so far all combinations of my queries are either really elementary "here's how to set up a new email" crap, or else aimed at moving from one Gmail account to another Gmail account. I've been thinking that the simplest approach might be just to set it up as a POP3 account in my mail client (eM Client, for the record), download it all, and then when I finally pull the plug just drag it into the local client archive, and then remove the account from the app. But I figure there have to be others who have done this, right?

This morning I was asked to find an archived email with photos of some scientific equipment. I searched "Powerlab," the name of one of the instruments, in gmail, and the email came right up. Great! But then I noticed that the word "powerlab" never appeared in the text of the email. I tried searching "ML206", an arbitrary character string from one of the photos in the email, and again, the email appeared in the search, without the search phrase highlighted in the search result, as it normally would be. I tried different phrases from jpgs in emails; not all yielded search results but some did.

I'm not happy about this. I accept some compromises to privacy when using Gmail, but sending text as an image can be a way of specifically avoiding information being harvested. All I ask for is a way to turn it off.

Can anyone replicate this? Did anyone already know about this?