Maildir to mdbox conersion size issue

[Petr Bousek]

I have some new info:

the original Maildir size was 24GB

after conversion to mdbox it was 48GB

today I tried to convert it back to Maildir and it was 39GB

So what's wrong?

Zlib wasn't used in any step.

Petr

On 27.1.2016 21:34, Petr Bousek wrote:
> Hello,
>
> I have issue with dovecot 2.2.13
>
> I want to change all Maildirs to mdbox format and I do it per partes, 
> so I change mail_location for user (in sql), than I use doveadm sync 
> -u user path_to_maildir and everything works mostly fine.
>
> But now I found that when I migrate quite huge Maildir (about 24G of 
> mails) to mdbox, after sync the final mdbox is twice as big as source 
> Maildir (48GB). I tried to find duplicities, but didn't find any.
>
> Is there any reason why mdbox consume so much data? Or I do something 
> wrong?
>
> Does somebody have same experience?
>
> Thanks
>
> Petr