Return address error...

[John Banghart <john @ a . success . net>]

I do this:

cat mail.test |./wrapper majordomo -l cpb

I get this:

pubs@cpb.com:  is not a valid return address


I have looked over all my lists and this one is not set up any different 
from what I can tell.  What's going on?

----
John Banghart
System Administrator
SuperNet Interactive Services
john@success.net