[Mailman-Users] refused relay (host)

[Rantanen, TC1]

I have mailman up and running, I can post to the list, can look at the list
archives from the web.

But when I someone tries to subscribe via the web, an entry in exim_mainlog
shows
2002-04-17 13:36:59  refused relay (host) <username at blah.net> from
<test-admin at blah.net> H=localhost.localdomain (blah.net) [127.0.0.1]

Does the cgi/mailman use a relay?