Problems Converting from Cyrus to Dovecot (cyrus2dovecot)

[FUSTE Emmanuel]

Hello,

Because it did not work ?
In a similar situation, we where forced to use isync/mbsync in imap to 
imap mode because dsync did not work.
It was reported here more than a year ago (May 2014).
Time to time, I see the same report from other trying to use dsync to do 
a migration to dovecot.
Dsync is a very appealing and elegant solution to this usage, but it 
does not always  work in real world.

Regards,
Emmanuel

Le 26/11/2015 12:30, Sami Ketola a écrit :
> Hi,
>
> With imapsync you will lose message UIDs which means that IMAP clients need to clear their local caches and redownload all messages. Why not use dovecot dsync over imapc instead? It tries to preserve UIDs and Flags.
>
> http://wiki2.dovecot.org/Migration
>
> Sami
>
>
>> On 07 Nov 2015, at 23:35, Forrest <those.lists at gmail.com> wrote:
>>
>> Thank you for the reply.  I did find imapsync whilst perusing Google.  I will give it a shot, it sounds more realistic/reliable. I have a hoard of emails going back to 1999, so I want as few errors as possible :)
>>
>>
>>
>> On 11/7/15 3:31 PM, Philon wrote:
>>> Hi there,
>>>
>>> I was in the same position, but for mutliple accounts. Still you might want to look at imapsync (https://github.com/imapsync/imapsync), isync and offlineimap. There are more alternatives listed at the imapsync homepage.
>>>
>>>
>>> Philon
>>>
>>>
>>>> Am 04.11.2015 um 20:47 schrieb Forrest <those.lists at gmail.com>:
>>>>
>>>> I have been attempting to use the cyrus2dovecot script, to no avail.
>>>>
>>>> I have many years of content that I want to convert from Cyrus to Dovecot; with the above not working, what are other options out there?  Another idea I had is simply set up another IMAP server (using Dovecot) and drag-and-drop and just wait, which I may end up doing.
>>>>
>>>> In the above, I copied over my entire /var/imap and /var/spool/imap to another system; there is only one account (mine), so calling the script was fairly easy; it just doesn't work.
>>>>
>>>>
>>>> inboxes=the "myaccount" that was copied over
>>>>
>>>> /home/myaccount/cyrus2dovecot --cyrus-inbox /home/myaccount/inboxes/%u     \
>>>>                   --cyrus-seen /home/myaccount/varimap/user/%h/%u.seen    \
>>>>                   --cyrus-sub /home/varimap/user/%h/%u.sub      \
>>>>                   --dovecot-inbox /home/myaccount/dovecot/Maildir \
>>>>                   myaccount
>>>>
>>>>
>>>>
>>>> the log output complains of:
>>>>
>>>>     cyrus2dovecot [myaccount]: (warning) Index record missing for: INBOX/62020.
>>>>
>>>> and correctly complains about squat indices, as that's not a file it would handle.  There is no output into the Maildir, however.
>>>>
>>>> All directory paths are correct.
>>>>
>>>>
>>>> Thanks.