Jason Ross wrote: > Hey all, > > For the last 8 months I have been running a postfix / mail scanner setup > based on Johnny Hughes' excellent tutorial. > For the firs 7 months I have had no issues. This past month I have been > having instances where the user gets an smtp error while trying to send > email. > Restarting the postfix service is all it takes to resolve this issue. > The problem is that it has begun to occur more and more often. It is now > up to once every day. > I have found nothing unusual in the mail or messages logs. As I am an > ultra newbie I am unsure of the next step to take to resolve this. > I have search through the past messages on this list and can find > nothing. Anyone have any ideas? The following details would be nice: Number of smtpd daemons configured (if you have not changed then it is 100), number of smtpds, cleanups and trivial-rewrites running when you encounter the problem, cpu utilization statistics. I am not familiar with how mail-scanner is run. I assume it has a fixed number of processes. Are all mail-scanner processes in action during the smtp timeout and taking the majority of cpu resources?