I’m running High Sierra on a 2016 MacbookPro. My business account uses G Suite (Gmail). I use Mac Mail and sync to my business account. I have a few other email accounts but my business account is by far the biggest.
I’m running out of drive space. I currently am showing 50GB space remaining on the 1TB drive in this Mac. Mail is the biggest user of disk space, with /Library/Mail taking up 160GB of space.
I’m trying to free up space but I don’t seem to be doing a very good job of it. I have tried Erase Deleted Items, which got me a little. I created a smart mailbox for email with attachments that is older than 5 years, and am using Remove Attachments but it’s a slow process. If I try to do more than about 500 emails at a time, Mail crashes. And removing attachments from 500 emails takes quite a few minutes. I have about 30,000 emails in this smart mailbox so it’s going to take a while to go through all those, and I’m not even sure this is the best approach, because it doesn’t seem to be having much of an effect on disk space so far.
One thing I notice inside /Library/Mail/V5 are what appear to be two “accounts” (folders with letter/number names) that both are large in size. One is 81GB and the other is 72GB. Looking inside those, the smaller one appears to be “On My Mac”. It’s full of folders of filed mail (I am a filer. Everything I get that I want to keep gets filed according to client/project/etc.) The larger one contains several subfolders, the only large one of which is (Gmail).mbox, which contains All Mail.mbox.
I am pretty sure that is syncing “All Mail” from Gmail, and I think the problem is, because I am a filer, I end up with two copies of many messages: One in On My Mac and one in the Gmail Archive or All Mail folder, which is getting synced down to my Mac.
It seems if I could get rid of All Mail on my Mac I’d immediately free up 81GB of space. I don’t want to get rid of All Mail altogether. It’d be good to keep it around at Google in case I miss something. But I would like to not sync it down to my computer. I still need my inbox, and other Gmail functionality to work, but I’m wondering if there’s a way to stop syncing All Mail to my Mac. And, if that’s even a good idea.
I also see the option in account settings for Download Attachments, with the options All, Recent and None. I read that Recent refers to messages up to 15 months old. If I switch to Recent will that update the synced All Mail folder to remove older attachments on my Mac, or would I still need to manually remove them? This presumes that the attachments are the bulk of the issue.
Any advice will be most welcome – thank you!