Sep 09 16:51:23 host=mail.agenturserver.de tls=on auth=on user=p450199p15 from=webmaster@unic-center.ch recipients=matthias.brigula@violution.net smtpstatus=550 smtpmsg='550 5.7.23 <webmaster@unic-center.ch>: Sender address rejected: Message rejected due to: SPF fail - not authorized. Sender not authorized http://www.open-spf.org/Introduction/' errormsg='recipient address matthias.brigula@violution.net not accepted by the server' exitcode=EX_DATAERR