dovecot - Aug 2015 - 2.2.18: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted.

Hello

I have 2.2.18 built with:

./configure \
    --prefix="$prefix" \
    --bindir="$prefix/bin" \
    --sbindir="$prefix/bin" \
    --sysconfdir="/etc" \
    --with-storages="maildir,imapc,pop3c" \
    --without-vpopmail \
    --without-ldap

I'm attempting to sync (backup) from another Dovecot server running version
2.0.21:

Both servers don't have no explicit namespaces configured and both are
using the Maildir storage plugin.

doveadm -Dv -o imapc_user=remote_user -o imapc_host=source.host -o
imapc_port=993 -o imapc_ssl=imaps -o imapc_password=remote_pass -o
imapc_features="rfc822.size fetch-headers" backup -R -u local_user
imapc:

All seems to go well, showing local and remote mailbox syncing without
errors, then finally:

dsync(mcg): Debug: brain M: Deleting mailbox 'INBOX' (GUID
59023c2a911dc255842b0000d09efc50): UIDVALIDITY changed (1355416734 ->
1438784913)
dsync(mcg): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't
be deleted.

No mail is synced to the local server (2.2.18) after this error halts
execution.

What should I be looking for, in terms of possible causes of this error?

I've tried syncing on a completely fresh mailbox, which hasn't been
accessed by a mail client and the same error occurs.

I've seen similar reports of this error before, without clear solutions /
suggestions.

Help would be greatly appreciated.

Thanks

Hello

Could my previously reported error above have something to do with the IMAP
path prefix? It's not configured on either of the previously mentioned
servers.

I see a similar error, which may be related, when trying to sync using
offlineimap.py:

Folder INBOX [acc: test_account]:
ERROR: ERROR in syncfolder for test_account folder INBOX

Thanks
Dale


On 5 August 2015 at 16:59, Dale Gallagher <dale.gallagher at gmail.com>
wrote:
> Hello
>
> I have 2.2.18 built with:
>
> ./configure \
>     --prefix="$prefix" \
>     --bindir="$prefix/bin" \
>     --sbindir="$prefix/bin" \
>     --sysconfdir="/etc" \
>     --with-storages="maildir,imapc,pop3c" \
>     --without-vpopmail \
>     --without-ldap
>
> I'm attempting to sync (backup) from another Dovecot server running
> version 2.0.21:
>
> Both servers don't have no explicit namespaces configured and both are
> using the Maildir storage plugin.
>
> doveadm -Dv -o imapc_user=remote_user -o imapc_host=source.host -o
> imapc_port=993 -o imapc_ssl=imaps -o imapc_password=remote_pass -o
> imapc_features="rfc822.size fetch-headers" backup -R -u
local_user imapc:
>
> All seems to go well, showing local and remote mailbox syncing without
> errors, then finally:
>
> dsync(mcg): Debug: brain M: Deleting mailbox 'INBOX' (GUID
> 59023c2a911dc255842b0000d09efc50): UIDVALIDITY changed (1355416734 ->
> 1438784913)
> dsync(mcg): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX
can't
> be deleted.
>
> No mail is synced to the local server (2.2.18) after this error halts
> execution.
>
> What should I be looking for, in terms of possible causes of this error?
>
> I've tried syncing on a completely fresh mailbox, which hasn't been
> accessed by a mail client and the same error occurs.
>
> I've seen similar reports of this error before, without clear solutions
/
> suggestions.
>
> Help would be greatly appreciated.
>
> Thanks
>
>
>
>

Hello

An update: I managed to sync mailboxes between the 2 servers using
imapsync, which worked perfectly.

I suspect there's a bug lurking in the imapc code, because why would an
external utility work flawlessly with 2 dovecot servers, but dovecot's own
syncing client won't?

Regards
Dale



On 6 August 2015 at 12:10, Dale Gallagher <dale.gallagher at gmail.com>
wrote:
> Hello
>
> Could my previously reported error above have something to do with the
> IMAP path prefix? It's not configured on either of the previously
mentioned
> servers.
>
> I see a similar error, which may be related, when trying to sync using
> offlineimap.py:
>
> Folder INBOX [acc: test_account]:
> ERROR: ERROR in syncfolder for test_account folder INBOX
>
> Thanks
> Dale
>
>
> On 5 August 2015 at 16:59, Dale Gallagher <dale.gallagher at
gmail.com>
> wrote:
>
>> Hello
>>
>> I have 2.2.18 built with:
>>
>> ./configure \
>>     --prefix="$prefix" \
>>     --bindir="$prefix/bin" \
>>     --sbindir="$prefix/bin" \
>>     --sysconfdir="/etc" \
>>     --with-storages="maildir,imapc,pop3c" \
>>     --without-vpopmail \
>>     --without-ldap
>>
>> I'm attempting to sync (backup) from another Dovecot server running
>> version 2.0.21:
>>
>> Both servers don't have no explicit namespaces configured and both
are
>> using the Maildir storage plugin.
>>
>> doveadm -Dv -o imapc_user=remote_user -o imapc_host=source.host -o
>> imapc_port=993 -o imapc_ssl=imaps -o imapc_password=remote_pass -o
>> imapc_features="rfc822.size fetch-headers" backup -R -u
local_user imapc:
>>
>> All seems to go well, showing local and remote mailbox syncing without
>> errors, then finally:
>>
>> dsync(mcg): Debug: brain M: Deleting mailbox 'INBOX' (GUID
>> 59023c2a911dc255842b0000d09efc50): UIDVALIDITY changed (1355416734
->
>> 1438784913)
>> dsync(mcg): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX
can't
>> be deleted.
>>
>> No mail is synced to the local server (2.2.18) after this error halts
>> execution.
>>
>> What should I be looking for, in terms of possible causes of this
error?
>>
>> I've tried syncing on a completely fresh mailbox, which hasn't
been
>> accessed by a mail client and the same error occurs.
>>
>> I've seen similar reports of this error before, without clear
solutions /
>> suggestions.
>>
>> Help would be greatly appreciated.
>>
>> Thanks
>>
>>
>>
>>
>