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My Public IP address was blocked by Spamhaus Blocklist?

Posted on 2016-11-08
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Last Modified: 2016-11-28
Hi all Expert,

I am fresh install and configure Exchange server 2013 to sent to internet domain (Yahoo, Gmail, hot mail, and other email) successfully. But I wonder that my public IP address was block by Spamhaus Blocklist.

My question is how to know my public ip address was blocked by Spamhaus Blocklist?
if it was blocked How can I remove my public ip address from Spamhaus Blocklist?

Thank you,
Chanveasna Tep
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Question by:Chanveasna Tep
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by:
Bing CISM / CISSP earned 250 total points (awarded by participants)
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you may check of your IP and/or domain has been blacklisted from below link and follow the screen instruction to known how to be removed.

https://www.spamhaus.org/lookup/
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LVL 95

Assisted Solution

by:Lee W, MVP
Lee W, MVP earned 125 total points (awarded by participants)
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Go to MXToolbox.com and check your domain there.
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by:Scott Silva
Scott Silva earned 125 total points (awarded by participants)
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And make sure you do all the reputation steps you can find to keep from being listed again...
Steps like reverse DNS matching forward...
Look at doing some of the frameworks like SPF, DMARC and the like.
Be careful to not spam people, by accident or purposely.

Some of the hardest to deal with are AOL and gmail receivers They require some proof that you are legitimate...
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Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

 

Author Comment

by:Chanveasna Tep
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HI

I can sent to yahoo.com and gmail.com, but I still cannot sent to all domain such as bokortechnology.com, outlook.com and other, and when I sent it show the error below:

Failed to connect to SMTP host BOKORTECHNOLOGY.COM because SMTP Protocol Returned a Permanent Error.
What wrong with it? I need your help.

Thank you.
Chanveasna Tep.
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LVL 9

Expert Comment

by:Scott Silva
Comment Utility
Did you lookup your domain and public ip on one of the services? Or send it in a private message and I can do it for you...
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by:Scott Silva
Comment Utility
Closed by request of email.
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Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

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