Darrell May wrote:
> rcpthosts is located in /var/qmail/control/. It is
> templated but start your investigation by taking a look at
> the file and see if your domain is listed.
I'm not sure that that will help. Sean says he sees the problem sometimes when sending mail out. That means either that he's trying to use an SMTP server which won't allow him to relay mail, or it means that he is mailing to external folk who have badly configured DNS or mail servers for their domains.
Charlie