CVE
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DNSBL
Delisting
THREATINT DNSBL is a database of IP addresses from which we recommend not to accept email. IP Addresses listed are known to conduct malicious activities including but not limited to sending spam and scanning hosts. Mail server operators may query our list before deciding to accept email from your mail server. If you find your mail server listed on our DNSBL, please follow these steps to get delisted: Make sure that you are are actually testing the IP address of your mail server, not some raSome readersPrivate networks and Link-local addresses
All private networks like 10.0.0.0/8 , 192.168.0.0/16, and fd00::/8 are listed on our DNSBL. The same goes for Link-local addresses like 169.254.0.0/16 or fe80::/10. These addresses are not routeable on the internet, so they cannot be used to send emails to public mail servers. There is no sense in testing these addresses against any DNSBL. If you find yourself doing that, you are probably looking at the LAN-side of your network. Please try the WAN address of your network.Few readers