zlib errors after upgrading

[Aki Tuomi]

> On 25/08/2020 14:35 Robert Nowotny <rnowotny at rotek.at> wrote:
> 
> 
> I get ZLIB Errors after dovecot upgrade from 2.3.10.1 to 2.3.11.3
> 
> 
>  Aug 21 15:27:34 lxc-imap dovecot: imap(acsida)<63870><jZk...>: Error: Mailbox Sent: UID=40826: read(zlib(/home/vmail/virtualmailboxes/acsida/storage/m.2409)) failed: read(/home/vmail/virtualmailboxes/acsida/storage/m.2409) failed: Broken pipe (FETCH BODY[])....
>  
>  many of those entries....
>  
>  after installing2.3.10.1 those files are still broken - but new files are working again.
> 
>  anything I can tweak or do ? 
>  
>

Hi!

Is it possible your mdbox file is corrupted? Can you share doveconf -n?

Aki