[Dovecot] Switching from mailbox to maildir.. duplicates!

[Timo Sirainen]

On Wed, 2007-05-02 at 11:32 +0200, Lars Johansen wrote:
> I have done some testing transfering the mail with the mb2md script, the
> conversion works correctly, but users gets duplicates since they
> selected "keep mail on server"
> 
> I have googled for the problem, and set
> pop3_reuse_xuidl=yes
> and
> pop3_uidl_format = %08Xu%08Xv is the same on both servers.. but no luck.
> 
> My first tought was to script in an X-UIDL header for each mail that
> was  converted.. but that wont work since the mail already downloaded by
> the client didnt contain that header..

It doesn't matter if the client hasn't seen the X-UIDL header, because
it's Dovecot that uses it.

The problem is anyway that your mbox -> maildir conversion didn't
preserve the UIDVALIDITY and UIDs. I'm not aware of any existing
conversion script that can preserve them.

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