[Dovecot] disable zlib via config to allow per mailbox compression level

[Jerrale G]

  On 10/10/2010 2:26 PM, Kui Zhang wrote:
> Thank you for the reply.
>
> Sorry, my post should have been more clear... I got the dynamic
> compression part. I dont know how to turn it off, for accounts that
> does not need/want it.
>
> I tried setting the compression level to 0, dovecot does not appear to like it.
>
> Error: zlib_save_level: Level must be between 1..9
>
>
> KuiZ
> On Sat, Oct 9, 2010 at 2:56 PM, Jerrale G
> <jerralegayle at sheltoncomputers.com>  wrote:
>>   On 10/9/2010 12:45 AM, Kui Zhang wrote:
>>> Hello
>>>
>>> Dovecot v2.0.5
>>>
>>>    zlib_save_level = 6 # 1..9
>>>    zlib_save = gz # or bz2
>>>
>>> Is there a config option to disable zlib, even if above config are in
>>> place? If so please provide an example.
>>>
>>> If no, would it be possible to add one? Like if  zlib_save_level = 0
>>> disable zlib. So one can configure per mailbox compression level via
>>> sql database.
>>>
>>> KuiZ
>>>
>>> Thanks
>> --
>> Yes, with all dovecot "Plugin" parameters, like zlib_save_level, they can be
>> dynamically set by your user_query for instance, on mysql, "SELECT
>> CONCAT('/home/mail', mailboxes.domain, '/', mailboxes.username) AS home,
>> mailboxes.compression AS zlib_save_level, ........ WHERE...."
>>
>> Mailboxes.compression would be the table.field where the compression level
>> for the user would be set. I know a value of "0" for zlib_save_level would
>> be no compression.
>>
>> Hope this helps! Remember, any setting that goes under "Plugin{}" can be
>> dynamically set in your userdb_query for LDAP, Mysql, or w/e storage plugin
>> you use. I have sieve_dir and quota_rule2 set by my userdb_query so that
>> some people can have quotas and others don't have an limit.
>>
>> Jerrale G.
>> SC Senior Admin
>>
for all other applications in *nix, where it uses the zlib or bzlib 
libraries, setting the compression to 0 usually allows disabling it.
Can you show your "doveconf -n" output please?

Jerrale G.
SC Senior Admin