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On Mon, 5 Aug 2013, Martin Burgraf wrote:

I'm wondering: Is it a problem to move and delete files inside a dovecot-managed maildir?

For example: I have a folder ~/.maildir/.Sub1.Start/cur and a folder ~/.maildir/.Sub1.Start.old/cur and like to regularly move old mails from the first to the second one. Can you create a cron job saying something like: find ~/.maildir/.Sub1.Start/cur -mtime +5 -exec mv {} ~/.maildir/.Sub1.Start.old/cur \; ?

I guess this would be some sort of problem, wouldn't it?

No problem with it basically, if both directories are located at the same parition (under the same mountpoint), in order to use the "rename()" syscall. Dovecot (and Maildir spec) expects the permissions a.s.o. in place when a file is seen in a folder new or cur. Also mtime should not change.

If you use keywords (labels, ...) they should be present in both folders, though. Look at the dovecot-keywords files, in it all relevant keywords must map to the same letter / digit. That also means: You cannot have more than 36 keywords per mailbox, because the others are storred in the index files only.

I use something like this:

find ..... -print0 | xargs -r0 mv -t target-dir

Regards,

Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)

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