[Mailman-Users] wrapper error

[Wayne Sitton]

setting up a mailman server.  I created a test list, when I subscribe to it
it sends the confermation request, but when I try to send the reply, I get
this

   ----- The following addresses had permanent fatal errors -----
"|/home/mailman/mail/wrapper mailcmd test"
    (expanded from: <test-request at listserv.iexalt.net>)

   ----- Transcript of session follows -----
sh: wrapper not available for sendmail programs
554 "|/home/mailman/mail/wrapper mailcmd test"... Service unavailable