I'm a list administrator for a list hosted by mailmanlists.net on a server in Germany. Only one member uses the digest option, but she doesn't receive a digest until the Digest size threshold has been exceeded. (I also am subscribed as a member with the Mime Digest option and see the same behavior.) The option for Send Digest Periodically is checked but doesn't trigger a daily digest on the days that there is some activity if the aggregate size doesn't exceed the threshold. I think "periodically" means daily, and the administrator doesn't seem to have any way of checking or changing the periodicity. The hosting service has attempted several fixes, including fiddling with the cron settings, but hasn't found something that works. They even upgraded to ver. 3.3.9 recently, and that didn't fix the problem.
Any suggestions for what I might do or suggest to the hosting service?