[Mailman-Developers] list confirm and request addresses acting as open relay

[Dale Newfield]

Giuliano Gavazzi wrote:
> Turning off listname-request (and mailman-request and the confirm  
> addresses too!) for a site is not difficult, just blacklist incoming  
> mail to those addresses and change the text of the relevant messages  
> and pages to reflect that.

Or more simply, just remove the relevant alias entries in the mail 
server configuration.

-Dale