How do I limit caching in Mail for Mavericks? I have a really low capacity MacBook Air. Earlier this year, I discovered I could keep it usable without a bunch of "running low on disk space" warnings by limiting the caching performed by Safari and Mail. In Safari it was easy, it's in Preferences, but in Mail it was a bit buried - select the account, advanced tab, and then "don't keep copies of any messages".

Problem is, it seems like in Mavericks this preference is gone. Is there an equivalent? I'm out of room on my Air once again.
With GMail, you can slightly aleivate this problem with:

Settings > Forwarding and POP/IMAP > Folder Size Limits > Limit IMAP folders to contain no more than this many messages = 1000

Also, in Mac Mail you can still disable Automatically download attachments.

This will leave you with the text of latest 1000 messages from each GMail label.