dovecot - May 2018 - dsync migration from maildir layout=fs to maildir seperator / - folders or inbox but not both

Am attempting to bring my mailserver back to home server post house move
and whilst I could use rsync have been trying to get to grips with dsync.

However, I seem to have an issue - my current server specifies
mail_location as

 maildir:/var/vmail/%d/%n/Maildir:LAYOUT=fs

and my imapc config on new server is as follows ...

imapc_host = old.mailserver.host
imapc_user = %u
imapc_master_user = master
imapc_password = **********
imapc_features = $imapc_features rfc822.size fetch-headers
imapc_list_prefix = INBOX
imapc_port = 993
imapc_ssl = imaps
imapc_ssl_verify = no

the trouble is if I leave

imapc_list_prefix = INBOX

I get the inbox only - no folders ... If I comment this out delete
maildir on target and  re-run .. I get the folders but no inbox but
folders are in fs layout format rather than being converted to
INBOX.folder.subfolder

bug perhaps ???? or am I doing something wrong ???

src dovecot version 2.0.9
tgt dovecot version 2.2.33.2

Any ideas would be appreciated ...

rgds

Matt
-- 

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Sigh ... ok so had if statement in SQL land that appended LAYOUT=fs if
Maildir which explains the non-converting folder layout but NOT why the
process is not picking up the actual contents of INBOX ...

Matt
> Matt Bryant <mailto:matt at the-bryants.net>
> 13 May 2018 at 8:01 pm
> Am attempting to bring my mailserver back to home server post house
> move and whilst I could use rsync have been trying to get to grips
> with dsync.
>
> However, I seem to have an issue - my current server specifies
> mail_location as
>
>  maildir:/var/vmail/%d/%n/Maildir:LAYOUT=fs
>
> and my imapc config on new server is as follows ...
>
> imapc_host = old.mailserver.host
> imapc_user = %u
> imapc_master_user = master
> imapc_password = **********
> imapc_features = $imapc_features rfc822.size fetch-headers
> imapc_list_prefix = INBOX
> imapc_port = 993
> imapc_ssl = imaps
> imapc_ssl_verify = no
>
> the trouble is if I leave
>
> imapc_list_prefix = INBOX
>
> I get the inbox only - no folders ... If I comment this out delete
> maildir on target and  re-run .. I get the folders but no inbox but
> folders are in fs layout format rather than being converted to
> INBOX.folder.subfolder
>
> bug perhaps ???? or am I doing something wrong ???
>
> src dovecot version 2.0.9
> tgt dovecot version 2.2.33.2
>
> Any ideas would be appreciated ...
>
> rgds
>
> Matt
-- 

<https://www.postbox-inc.com/?utm_source=email&utm_medium=siglink&utm_campaign=reach>
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> On 13 May 2018, at 14.07, Matt Bryant <matt at the-bryants.net>
wrote:
> 
> Sigh ... ok so had if statement in SQL land that appended LAYOUT=fs if
Maildir which explains the non-converting folder layout but NOT why the process
is not picking up the actual contents of INBOX ...
> 
Try setting imapc_prefix=INBOX instead of imapc_list_prefix.

Sami