gA7GDdI17774: to="|/home/mailman/mail/wrapper mailcmd testlist", ctladdr=<testlist-request@xxxxx.xxx> (8/0), delay=00:00:01, xdelay=00:00:01, mailer=prog, pri=30034, dsn=4.0.0, stat=Operating system error

I get this error regardless if I use the sendmail module or the smtp module. Clearly the mail is received but is somehow getting lost. The queue is empty.

I run majordomo on this same box and I wanted to make the switch to mailman because it does more what I want a mailing list to use than majordomo does.

Any help is appreciated, -Ed