Hi all My configuration is OS : Linux 2.6.23 PLesk version 8.2.1 How can I make emails beeing sent and delivered from domains on this server to other domains on the same server ? I can do it on one way only, meaning that from the webmail.domain.com .. I can receive only. When I send from ther I have this message (excerpt) Hi. This is the qmail-send program at s15578529.onlinehome-server.info. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. .../... Received: (qmail 370 invoked by uid 48); 11 Jul 2010 17:08:31 +0200 Received: .... So actually for example when I install a Wordpress on a root domain and need to register an email account with the same domain ...i just can't and have to use external accounts like hotmail. Hope someone has an idea. Thx