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Unable to send e-mail to hotmail contact, get error message 550 SC002

GeorgeMalko
GeorgeMalko
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My contact is on hotmail. I can receive an e-mail from them. When I replay, it is returned to me with the following: This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: 

 elizabethmalko@hotmail.com
   SMTP error from remote mail server after MAIL FROM:<geemal@earthlink.net> SIZE=3240:
   host mx4.hotmail.com [104.44.194.236]: 550 SC-002 (SNT004-MC10F22) Unfortunately, messages from 209.86.89.69 weren't sent. Please contact your Internet service provider since part of their network is on our block list.
My contact is on hotmail. I can receive an e-mail from them. When I replay, it is returned to me with the following: This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: elizabethmalko@hotmail.com SMTP error from remote mail server after MAIL FROM:<geemal@earthlink.net> SIZE=3240: host mx4.hotmail.com [104.44.194.236]: 550 SC-002 (SNT004-MC10F22) Unfortunately, messages from 209.86.89.69 weren't sent. Please contact your Internet service provider since part of their network is on our block list.

All Replies (1)

user01229325
user01229325
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The error message clearly states your ISP has been blocked due to a bad reputation and to contact them. Contact them. This is not a Thunderbird issue.