553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

commonly, also: "do I have to put domains I want to send mail to in rcpthosts?

I was going to write something here about this, but after seeing this document: http://www.palomine.net/qmail/relaying.html, there's no need to, as it describes relaying perfectly.

Related Documentation

man qmail-smtpd
tcprules
tcpserver

Jeremy Kitchen - kitchen at scriptkitchen dot com - 2/12/2004