[Dovecot] zlib plugin nad moving mails, bug?

[Timo Sirainen]

On Fri, 2008-07-18 at 16:14 +0200, Mateusz Kijowski wrote:
> Recently I gzipped mails older than 30 days in our users' maildirs. I used 
> find and gzip. Gzip added 'Z' at the end of the filename and everything 
> seemed to work fine, users did not notice any difference in performance 
> (yet :-), and I saved about 30% of our mail storage space.
> 
> There seems to be a problem when moving gzipped messages from one folder to 
> another though. Dovecot drops the Z flag, moved messages are not processed by 
> the zlib plugin and email clients end up showing garbage.
> 
> Is there something wrong with my config, or did I encounter a bug?
..
> maildir_copy_with_hardlinks: yes

Hardlink copying is broken with zlib plugin. v1.1 works differently and
it works there (although non-hardlink copying was broken there, fixed
only in hg).

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