Re-filter with sieve?

[tilllt]

Sorry if i missed the documentation on this, a quick search didnt yield results:

Is it possible to "refilter" my mailbox if i added sieve rules later and want to pass the existing mailbox through these rules?

[polarathene]

No maintainers are that familiar with Sieve support AFAIK, I am probably the one with the most familiarity from trying to assist users and revise our docs on it 😅

I imagine you might need to trigger the sieve rules by having the mail delivered back to Dovecot again. I've heard of something called imapsync (someone shared a guide for that in our issues or discussions in the past month), which might be a way to trigger it.

Another as you might be familiar with fetchmail/getmail, would be to have one DMS container with your existing mailbox, and your real DMS container with a fresh mailbox, that then retrieves the mail from the temporary DMS container (with a copy of your current mailboxes), although I've not verified if that would grab all mail (such as custom folders or junk mail etc).

---

EDIT: Oh it seems you might be in luck! Dovecot actually has an experimental sieve-filter CLI command, you can use that in DMS. I unfortunately don't have the time right now to play with that and whip up an example for you so you'll need to make sense of the linked docs yourself, but if you have any queries specific to how DMS configures something I can probably answer those.

[tilllt]

This will start a dry-run:

sieve-filter ./var/mail/example.com/john.doe/home/.dovecot.sieve INBOX -u john.doe@example.com

• If you want the dry-run to be executed instead, add -e.
• If you want to allow the tool to make changes to the source mailbox (delete moved messages), add -W for write access.