Alternatively, if you are accessing the mailboxes via IMAP, the server software may have a fancier mechanism. For example, Dovecot has virtual folders.I'm on Dovecot, and am already taking full advantage of virtual folders. My virtual inbox is actually a "last 2 days" view, but I would *still* like to have a segmentation "Today", "Yesterday", etc within this mail index screen. I also have a "last 30 days" folder, where segmentation would be even more useful. One of the replies mentioned something about "tasteful" or similar. For me, mail is not a fashion statement, it needs to get work done, so not giving that taste argument much weight. Thus far, it seems like it's simply a technically difficult goal. Other than that, haven't seen a any legit alternatives or arguments to convert this want into "OK I really don't need it after all".
I think the dovecot alternative you use now, and/or using a tool like mairix (which I never used, but it seems you can use it to create time based virtual mailboxes) is as good as you are going to get it with mutt. Mutt displays messages per mailbox, filtered if you want, and sorted as you want, but always one message per line. As far as I know there is no way to get any sort of grouping based on message age that you want in a single view, let alone provide a way to collapse/expand such groupings. Note that I am not passing judgement on your need for this functionality, but if it is an absolute requirement/deal breaker for you, then mutt might not be the tool to use here. I hope that with the suggestions you've been given you can find something that will "kind of" work for you, as I'm out of ideas otherwise. Kind regards, Remco
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