You have to allow relaying for the IP you are sending from. Just because the From domain is listed in rcpthosts doesn't mean the To domain is going to be allowed.
How do I do that? I don't seem to have any files in qmail/control which look like they're supposed to contains IP addresses.
You can allow relaying with smtp-auth, pop before smtp or by specifically allowing your IP to relay.
I've never managed to get smtp-auth to work. It only seems to work with vpopmail domains and not proper local domains. It does seem to support it, but no username and password I give it seems to work.
Thanks, Nick...
