I'm setting up a Google Group for use as a mailing list with a non-technical audience. I want to be able to allow them to perform all necessary actions without using anything but their email address.
I see that it is possible to subscribe or unsubscribe by sending an email to
Is there a similar email target that would let me perform the following actions:
- Change a subscription from regular delivery to daily-digest
- Subscribe with daily-digest turned on from the start