> It's not postfix-specific, but can't you just write a perl > script to track > message queue and dequeue times in /var/log/maillog based on > their unique > ID? What kind of resources is that going to take though? Preferably, I'd like to get all of the info into MRTG or Cricket so I can see trends throughout the day and match them up with trading volume on the market and news bulletins. Whatever I have needs to come up with an answer almost instantaneously, so analyzing logs is pretty much out of the question. Jay