Hi, mailserver cant send mails to microsoft mail server. for example: outlook.com got message: host mx1.hotmail.com[65.55.37.104] said: 550 SC-001 (COL004-MC3F20) Unfortunately, messages from 144.76.147.83 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL FROM command) Blacklist check @ http://mxtoolbox.com/SuperTool.aspx?action=blacklist:144.76.147.83&run=toolpage says my server is clean.
Microsoft has their own blacklists, you can not check them at mytoolbox. Follow the link in the error message to the microsoft support page and request a whitelistng of your IP.
Found a solution http://mail.live.com/mail/policies.aspx So i had installed DKIM Patch and updated all domains and it seems to be working DKIM Patch: http://blog.schaal-24.de/ispconfig/dkim-patch-1-0/
