The Default-Options header keyword setting does not affect existing subscribers. If you want existing subscribers to have these same settings, you must update them manually using the Set listname options for *@* command. For example, to set each subscriber to receive a copy of his/her own posting (repro) and put the listname in the subject of the message (subjecthdr):

  1. From the web interface, expand List Management
  2. Select LISTSERV Command
  3. Enter the following command: set listname Repro SUBJecthdr for *@*


  1. Address an e-mail message to
  2. Put the following command in the body of the message: set listname Repro SUBJecthdr for *@*
  3. No subject and remove extra text, such as signature, from the message.
  4. Send the message and confirm the command.

See the List Keyword Reference for LISTSERV for more information.

Article number: 
Last updated: 
September 30, 2019