[horde] ingo & dovecot: permission-conflict

[Stefan G. Weichinger]

Greets,

I use ingo to write sieve-rules to the local filesystem, dovecot has to
read those sieve-files.

ingo writes them as the user running apache ->

drwx------ 2 wwwrun www

I have dovecot in the group www, how to configure things that whenever
ingo creates the sieve-dir for the user there are automatically
group-permissions set as well?

Thanks, Stefan