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Communication with yahoo.com

    Question

  • I am Hotmail user.

    3 person, user of @yahoo.co.jp, complain they can't send messages to @Hotmail.com.

    Here are 3 cases of the bounce-back messages:

    Case 1

    From: "MAILER-DAEMON@yahoo.co.jp" <MAILER-DAEMON@yahoo.co.jp>
    To: tttttt@yahoo.co.jp
    Date: 2017/7/9, Sun 21:10
    Subject: Failure Notice

    Sorry, we were unable to deliver your message to the following address.

    < fffff@hotmail.com>:
    Remote host said: 550 SC-001 (BAY004-MC6F19) Unfortunately, messages from 182.22.90.14 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

    --- Below this line is a copy of the message

    Case 2

    From: "MAILER-DAEMON@yahoo.co.jp" <MAILER-DAEMON@yahoo.co.jp>
    To: sssss@yahoo.co.jp
    Date: 2017/7/7, Fri 21:25
    Subject: Failure Notice

    Sorry, we were unable to deliver your message to the following address.

    < fffff@hotmail.com>:
    Remote host said: 550 SC-001 (SNT004-MC11F13) Unfortunately, messages from 182.22.91.77 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/troubleshootin

    --- Below this line is a copy of the message.

    From: "MAILER-DAEMON@yahoo.co.jp" <MAILER-DAEMON@yahoo.co.jp>
    To: ppppp@yahoo.co.jp
    Date: 2017/7/7, Fri 21:24
    Subject: Failure Notice

    Sorry, we were unable to deliver your message to the following address.

    < fffff@hotmail.com>:
    Remote host said: 550 SC-001 (SNT004-MC8F21) Unfortunately, messages from 183.79.57.71 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

    --- Below this line is a copy of the message.

    Who rejected the message, it looks like Hotmail?

    Is the remote host 550 SC-001 (SNT004-MC8F21)?

    Is 183.79.57.71 ISP?

    Why does it reject message? The same messages are sent to Gmail, they were sent with no problem.

    http://mail.live.com/mail/troubleshooting does not work.

    Monday, July 10, 2017 7:42 PM