Help! Qmail tells me "domain not found in rcphosts"

[Jochen E. F�hring]

Hello! 

If I try to mail from [EMAIL PROTECTED] to
another domain, like list.cr.yp.to, my qmail
refuses to take the mail with this message :
"domain not found in rcphosts"

I don't understand! pcsystems.de is in the rcphosts.
I can't put every domain in this file I want to mail to!
Help, please!

Sincerly,
Nico