On 2014-04-14, Chris ch2009@arcor.de wrote:
On 04/06/2014 02:09 PM, Rafa?? Radecki wrote:
I have some very large constantly updated mbox files
I don't know a tool to compact them, but I would consider converting them to Maildir. Although they won't need less space, handling them will be easier.
In the context of the OP, when mutt tries to deal with a message (e.g., deleting, moving to a folder), it can be boatloads faster, since handling the message works on a small file which contains just that message. Deleting a message from an mbox mailbox, for example, requires rewriting the entire changed mbox file to disk (minus the deleted message). Deleting a message from a Maildir mailbox is just removing one file from a directory.
--keith