We run a mailserver on OSX server, and a few mailing lists. The password/subscription reminds USED to come out at 8AM (local), but in the past months it's moved to 5AM, a nuisance to all involved.
It would appear that mailman has been modified by Apple because there is no cronjob entry I can find that controls when these reminder notices come out, and I haven't found any launch agent/daemon plists that would control this ether. Nor have I found anything in the mailman configuration web pages.
So... where are they?! Due to the specific-announcement style of use, they're a fairly worthless message to be originated, and they are a huge bother when announcing to support phones.