How to create super-lists/sub-lists in Listserv (to eliminate duplicate messages)

Overview

This feature in LISTSERV allows a sender to send a message to a main list, and the message gets sent to people on different sub-lists without being marked as spam. It makes sure that each person gets only one copy of the message, even if they are on multiple sub-lists.

Instructions

1. Login to Listserv - Article - How do I log in to Listserv? (purdue.edu)
2. Switch your Profile to Expert Mode (this is needed to see options that are not visible when in Basic Mode)
   1. To switch your Profile, click on your email address on the upper-right of the page
       
   2. Click on the “Edit Profile” button
      
   3. Click on the “Mode” dropdown
   4. Select “Expert Mode”
   5. Click on “Save”
3. Select List Configuration on the left section 
   
    
4. If you own multiple lists, click on the “Select List” dropdown menu and select the list you need to make changes to. (this will be the Super-List or the parent list) 
   
   
    
5. Click on the “Distribution” button
   
    
6. Scroll-down to the “Sub-Lists=” section 
   
    
7. Enter the list name/s in here, one list per line. Do not enter the list email address, enter only the name of the list. (the list names entered here are the Sub-Lists or child/children of the Super-List)  If the list names you added here are subscribed to this list, make sure to delete the list from your Subscribers list under the “Subscriber Reports” on the left section.
    
8. Once done entering the lists, click on the “Update” button on the lower-right to save your changes

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