When using mutt I don't want all the messages to be cached, which could take up a lot of disk space. But if I purge an email, it also gets deleted on the server side, which is undesired because I may need to reference it in future. Is it possible to automatically clean up cached old messages when it's >100MB, while keeping those messages as they are on server and never retrieve them back to my laptop?
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is this question still valid? I think the disk space doesn't bother anyone for long years. Anyway, I don't think mutt can do this, but there can be some option on the server. f.e.: GMail has Folder size limits in it's IMAP configuration where You can set maximum number of messages served from every IMAP folder – Jakub Jindra Feb 25 '19 at 17:09
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Thanks for the reply. Would you mind rephrasing your comment into an answer which I can mark as accepted to close this question? After, even no is an answer as well :) – wlnirvana Feb 28 '19 at 10:25
AFAIK you cannot do that directly in neomutt.
But in GMail and maybe other e-mail providers you can set limit for number of messages beeing fetched from folder/label over IMAP.
GMail > Settings > Forwarding and POP/IMAP (IMAP access section) under Folder size limits
Limit IMAP folders to contain no more than this many messages
