Hi Aki,

this might be caused by FULLDIRNAME=DbOx-mAiLs (as far fetched as it sounds). Would it be possible for you to try it out if it happens if you remove this setting?

I tried it luckily on a small server. Yes it seems to have to do with it, but it destroyed indexes on a active mailboy.

I have to setup a test server.

Sincerly, Klaus

On 04/03/2021 12:50 Klaus Steinberger <klaus.steinberger@physik.uni-muenchen.de> wrote:

Am 03.03.21 um 12:19 schrieb Aki Tuomi:

...

Hi,

this might be caused by FULLDIRNAME=DbOx-mAiLs (as far fetched as it sounds). Would it be possible for you to try it out if it happens if you remove this setting?

I found this: https://dovecot.org/pipermail/dovecot/2019-August/116799.html

But when I follow the advice and remove one of the options somethings goes wrong.

Removing FULLDIRNAME -> access to Folder got lost completly

Removing INDEXES -> Folders are there, but empty

What is the correct way to migrate when I change these options?

Sincerly, Klaus

Safest way is to do a full migration to new environment. Unsafe option is to do mv DbOx-mAiLs dbox-mails in both mail storage and mail index directory.

Aki

On 04/03/2021 13:20 Klaus Steinberger <klaus.steinberger@physik.uni-muenchen.de> wrote:

Hi Aki,

...

Safest way is to do a full migration to new environment. Unsafe option is to do mv DbOx-mAiLs dbox-mails in both mail storage and mail index directory.

any chance that it could be solved in dovecot?

I have an server with 5k users and over 6 TByte messages

Sincerly, Klaus

That's the migration option. If you change mail location driver or mail location driver configuration, you are looking at migration project. Sorry.

Aki