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Alpha1
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Error S3150 frequently occurs with Microsoft email domains. Its not a real bounce, but a notification that the admin needs to take action.
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Code:
550 5.7.1 Unfortunately, messages from [173.198.243.126] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [VE1EUR01FT080.eop-EUR01.prod.protection.outlook.com 2024-02-02T21:37:21.315Z...Read more
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