How do I delete a listserv?
Explains how a listserv can be deleted
If a listserv was created inadvertently or has reached the end of its useful life and is no longer needed, any of the list's owners may request that it be deleted by contacting email@example.com.
If you are not the list owner, you may contact firstname.lastname@example.org instead, and have the paperwork completed by your department head.
For more Listserv information https://accc.uic.edu/services/communication-collaboration/email-calendaring/listserv/