Sending mails to Microsoft-Mail Domains

Discussion in 'Installation/Configuration' started by Greenhorn2013, Apr 7, 2016.

  1. Greenhorn2013

    Greenhorn2013 New Member

    mailserver cant send mails to microsoft mail server.
    for example:
    got message:
    host[] said: 550
    SC-001 (COL004-MC3F20) Unfortunately, messages from 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 (in reply to MAIL FROM command)

    Blacklist check @
    says my server is clean.
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    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.
  3. Greenhorn2013

    Greenhorn2013 New Member

    Jesse Norell likes this.

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