2010:05:22-00:34:48 ****** pop3proxy[13416]: Warning: UID (message_id 3200) already present in database
2010:05:22-00:34:48 ****** pop3proxy[13416]: Database error: ERROR: duplicate key value violates unique constraint "modified_headers_pkey"
2010:05:22-00:34:48 ****** pop3proxy[13416]: Can't insert mail uid into database
2010:05:22-00:34:48 ****** pop3proxy[13416]: Prefetcher exception occurred
and no more mails were prefetched
till the appropriate mail was manually dispatched from ISPs buffer
