Matt Thoene wrote:
Cron question...why would I need for cron to retry failed deliveries once per minute?
Well, to answer the question you asked explicitly: so the failed deliveries get changed into successful deliveries. For the question you didn't ask: virtually all mail is sent by qrunner from cron, so cron is a necessary part of sending mail at all, much less failed deliveries.
Do any of you keep this setting as is? It's filling up my cron log big time.
Ah, so *maybe* you're asking "why does it need to be so frequent"? See above: any list mail will wait until qrunner sends it. Doesn't need to be "each minute" if you don't mind delays on list posts. Note that I often run qrunner by hand, too, to flush something out immediately; perhaps that model is more appropriate for some announce-only lists or the like.
As for "cron logs"...is this really a worry? I've got about a megabyte in log and olog on Solaris. A megabyte is ignorable in these days of "20GB is entry-level" disks.
Anyway, if it's a problem, you can turn off cron logging, too.