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, go to List Management > LISTSERV Command
  2. 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 *@*

See the List Keyword Reference for LISTSERV for more information.

Article number: 
Last updated: 
May 19, 2016