How can I get a digest instead of multiple posts from a list?

Answer

Go to the options page for the list you want to receive digests at
http://lists.csusb.edu/mailman/options/<list name>

where <list-name> is the name of the list. For example, the options page for my-list will be https://lists.csusb.edu/mailman/options/my-list.
Scroll down to the section marked Set Digest Mode.
Set the radio button to On.
Scroll down to the bottom of the page and click the Submit My Changes button.

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