I have a new client that had a server that was being abused via backscatter spam and now they've been blocked from outlook.com email (ie live, hotmail, msn, etc). I've resolved the issue but don't see any way to remove the block. I submitted the request to unblock but received this message in return:
There are indications that the above IP(s) are engaged in namespace mining. Outlook.com is blocking all email sent from this IP.
Namespace mining is a method commonly used by malicious senders to generate lists of email addresses. This approach uses automation to sift through possible email names seeking to identify valid email addresses, e.g., Joe@domain.com, John@domain.com, and
Josy@domain.com.
You must correct the problem and you must stop the behavior described above. We recommend that you work with your email or network administrator to review the logs of your email servers. Check the sending log files and concentrate on logs that are sending
to nonexistent @hotmail.com, @live.com, @msn.com, @outlook.com?with multiple tries and failures.
My question is, when an issue like this arises and the issue resolved, how do I get the client IP unblocked. There's no indication in the email where to send an email or call to indicate the problem has been taken care of. This client doesn't send bulk email, but their business relies on email and is now being hindered as a result. I realize they had suspect security the in past which caused the issue over the last few weeks, but perhaps I'm missing something, but it seems like there should be SOME way to contact someone other than automated message to discuss a blockage.
Any help, guidance, or information would be greatly appreciated.