问题 提问于 2013年9月27日
A friend in czech is trying to send me an e-mail to my hotmail account and gets the following error - how can this be fixed? 5.0.0 smtp; 550 SC-002 (BAY0-MC1-F58) Unfortunately, messages from 77.75.76.26 weren't sent. Please contact your Internet service
provider since part of their network is on our block list.
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