Milter-greylist

> In addition to my previos letter. The following string I found in my
> syslog before crash. Maybe it will be helpful.
> 
> Jan 25 16:08:39 snark milter-greylist: [ID 525239 mail.error] 
> cannot write
> dumpfile "/var/milter-greylist/greylist.db-XXJeaaLX": No such 
> file or directory
> Jan 25 16:08:39 snark milter-greylist: [ID 421540 mail.info] Final
> database dump: no change to dump
> Jan 25 16:08:39 snark milter-greylist: [ID 649572 mail.info] Exiting
> 
> at the same time empty file greylist.db-XXJeaaLX was created 
> and leaved in
> /var/milter-greylist/:
> 
> -rw-------   1 root     other          0 Jan 25 16:08 
> greylist.db-XXJeaaLX
> 

Might be disk full condition, but rather the milter may have
run out of file pointers.