On 20.9.2011, at 16.58, Helge Milde wrote: > plugin { > zlib_save_level = 6 > zlib_save = gz
These are enough. You don't mention your Dovecot version. My guess is that your Dovecot version is too old and doesn't support saving mails with zlib.
On 20.9.2011, at 16.58, Helge Milde wrote: > plugin { > zlib_save_level = 6 > zlib_save = gz
These are enough. You don't mention your Dovecot version. My guess is that your Dovecot version is too old and doesn't support saving mails with zlib.