[Dovecot] zlib plugin

[Luuk]

Timo Sirainen schreef:
> On Sun, 2008-10-05 at 21:28 +0200, Luuk wrote:
>   
>> hi,
>>
>> Could anyone give some info on this plugin?
>> When i read the wiki (http://wiki.dovecot.org/Plugins/Zlib) i'm still 
>> left with some questions...
>>
>> I use Maildir to store my mails, if i enable this zlib-plugin,
>> should i 'manually' compress all messages?
>> or wil the uncompressed messages still be accessible by dovecot?
>> wil new messages be compressed automagically?
>>     
>
> Dovecot can read both compressed and uncompressed messages.
>
>   
>> how should the compressed messages be named?
>>     
>
> It doesn't matter from Dovecot's point of view since it detects the
> compression by reading the first few bytes of the file. But since you'll
> be compressing them manually you should mark them in some way so you
> don't compress anything twice (and that would break Dovecot too).
>
>   
>> a message now has the name '1223224520.2783_1.opensuse:2,S'
>> how would a compressed message be named?
>> ['1223224520.2783_1.opensuse:2,SZ'
>>     
>
> This is OK.
>
>   
>>  or '1223224520.2783_1.opensuse:2,S,Z' 
>>     
>
> This isn't a valid maildir file name.
>
>   
>> Last but not least, what gain will i have by using this plugin in 
>> combination with Maildir, or will it have more impact when mails are 
>> stored in mbox.
>>     
>
> I guess it depends on the size of your mails. With mboxes it can be used
> only with read-only archives, so it's not all that useful. With maildir
> it can be used transparently with read-write mailboxes. I've no idea
> what the performance difference or space improvements are. I guess
> that'll also depend on your system.
>   

ok, thank you,
in the near furure i will try to install this zlib-plugin (on a 
test-system) and see what happens...

-- 
Luuk 
$ dovecot --version
dovecot version 1.1.1
$ uname -srpmio
Linux 2.6.18.8-0.10-default x86_64 x86_64 x86_64 GNU/Linux