I'm using FreeBSD 4.11 running Plesk 7.5.4 with the latest patches installed. When any mail is sent to the listserv regardless of the list, the mail is never delivered. When I look in the qmail log, I see the following: Oct 13 10:38:07 cartman qmail: 1129217887.945340 info msg 475704: bytes 690 from <firstname.lastname@example.org> qp 24768 uid 2020 Oct 13 10:38:07 cartman qmail: 1129217887.950772 starting delivery 12: msg 475704 to local 1-Customeremail@example.com Oct 13 10:38:07 cartman qmail: 1129217887.951514 status: local 1/10 remote 0/20 Oct 13 10:38:07 cartman qmail: 1129217887.974223 delivery 12: success: Failure_to_exec_mailman_wrapper._WANTED_gid_110,_GOT_gid_100.__(Reconfigure_to_take_100?)/did_0+0+1/ I am not sure where to go from here, and this is a default install, nothing special or tweaked. Emails are sent from the listserv when you add or remove people from the mailman GUI or the Plesk GUI, just not when you send mail to the list.