ach, und übrigens:
Code
host eur.olc.protection.outlook.com [104.47.22.161]
SMTP error from remote mail server after pipelined end of data:
550 5.7.1 Unfortunately, messages from [194.13.83.104] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [DB8EUR06FT027.eop-eur06.prod.protection.outlook.com]