On Wed, 16 Oct 2002, Tom Coady wrote: > ... > > <psyche-list@redhat.com>: host mx1.redhat.com[66.187.233.31] said: 550 5.0.0 > <aovt15@dsl.pipex.com>... You msut use a valid mail server This may mean the last mail server your mail passes through before it tries to get to a redhat server is unregistered, or is registered in some way that upsets the redhat server. It would be useful to see the headers on the bounced message and especially the "Received:" ones. Michael Young -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list