Vu Ngoc VU vvu@mcra.fr writes:

My goal is to be able to find mails quickly with "doveadm search". We are using dovecot in a corporate. And some managers, sometimes ask to delete some messages. These messages are "unwanted" ones: mistakenly sent, defamatory...

So, that situations appear rarely, but when asked, they expected me to deleted quickly these messages from few to thousands of users mailboxes.

Is that possible to change behaviour of Dovecot, some headers like sender, message-id, date are stored in cache for at least 48h? (7 days would be better).

So is this a fair summary of what you are asking: you want to load dovecot's caches with searchable items (i.e. specified headers) *and* have them expire and removed from caches after a preset amount of time?

Caches are persistent: once an item is cached, it stays in the cache. I can't think of a good way to purge them without a lot of bother, but maybe you don't really need this.

If you want to preload the cache with searchable items, you can periodically run a search/fetch command, which will load the cache with headers you want.

http://www.dovecot.org/list/dovecot/2010-October/053521.html

Maybe you can even add these items into the cache upon delivery, but someone more knowlegable than I would have to help you with that. The FTS/Solr plugin might also help.

You seem to be optimizing the wrong problem. Reading between the lines of your message, your management wants a technical solution to a human problem (someone did an oops).

Joseph Tam jtam.home@gmail.com