Milter-greylist

Hi,

  We've got milter-greylist working on 5 servers.  Recently, we went
from a whitelist default policy to a blacklist policy.  

  A few weeks before, we realized that we didn't need to restart
milter-greylist after each change to the config file, so we don't
restart it after each change anymore.

The problem is that it comes back to the default config, once in a
while, w/o obvious reason. How can I tell?  The default delay comes
back to 30m (we're using 1m) "delayed for 00:30:00", also, we usually
use the quiet option, but milter greylist starts saying 'come back in
30:00'.

I thought, at first, that it was a syntax error in the config, but
we're now checking the config file everytime we sync it, so it
shouldn't be the case.

Here is what I found in the logs:

lots of :

milter-greylist: greylist, mi_rd_cmd: read returned -1: Connection
reset by peer

A few of these:

milter-greylist: Unexpected reply "105" from peer 10.20.20.50 closing
connexion (0 entries queued)

Anyone experiencing a similar problem?

Thanks,

Ugo