549200 Postfix Help

Hello, 1. i have a Root Server with Debian Webmin and Virtualmin. Now most of all is running fine;-) but i have a little mail Problem. I can not send a email from Server Account to a extern mail account sample like hotmail i got this error: 554 5.7.1 .....Relay access denied BUT NOT AT ALL domains from same server:-) [login to view URL] can send [login to view URL] can not send from SAME SERVER 2. next is "warning: do not list domain [login to view URL] in BOTH mydestination and virtual_alias_domains" i use Postfix, Procmail, Devecot. i use virual Domains. and you must fix the Mailserver. i know if you an postfix expert you will fix this in seconds.