So this is 100% a really common situation. I don’t know any of my friends that aren’t hovering at about 96% of their gmail capacity and don’t want to pay. In fact that’s me today. Hence I’ve been looking around at self hosted alternatives and had previously looked at extracting my emails from Google and loading them in from local storage into Thunderbird - However I was playing around with Yunohost today and randomly uncovered this page - yunohost.org/es/email_migration I’m not sure how relevant it is but points to potentially some approaches. I can’t vouch for them but I’d love to hear from anyone who has used imapsync or larch