The Tiopan Blacklists consist of bl.tiopan.com (blacklisted IPs) and dbl.tiopan.com (blacklisted domains). Listing in the Tiopan Blacklists means that we do not accept communication from the listed IP and domain.
Here are a few characteristics of the Tiopan Blacklists:
How to remove an IP or domain from the Tiopan Blacklists?Currently, an IP/domain will be automatically removed from the Tiopan Blacklist using a weighted score. Depending on the weighted score, it can be days, weeks, months, or even years before an IP/domain is being removed.
If you would like to improve your IP reputation score (one aspect of the weighted score), you may optionally register your IP in our database. Please see below on how to register.
How to use the Tiopan Blacklists?The Tiopan Blacklists can be used on various mail servers to directly block undesirable IP/domain at the SMTP level or through scoring.
By using the Tiopan Blacklists, you acknowledge and agree that:
There are two methods to use the Tiopan Blacklists:
How to confirm that I can access the Tiopan Blacklists?To confirm access to bl.tiopan.com, please use: "nslookup 188.8.131.52.bl.tiopan.com" (without the quotes). It will return 127.0.0.2 if you have access to bl.tiopan.com.
To confirm access to dbl.tiopan.com, please register your DNS resolvers; you are not automatically able to access dbl.tiopan.com even if you can access bl.tiopan.com.
If you don't have access and would like to use the Tiopan Blacklists, please register your DNS resolvers by sending an email to firstname.lastname@example.org with the following information:
Do you accept spam samples or log files for analysis?If you are using the Tiopan Blacklists and would like to further reduce unwanted emails, you may send real time spam samples and log files for analysis. Please contact us at email@example.com for more information regarding account setup, server setup, etc.
Do you offer whitelist service?Currently, we do not offer whitelist service for public usage.
How do I register my IP address?You may register your IP in our database to improve your IP reputation score. However, registering your IP is not a way of delisting from or bypassing bl.tiopan.com. In order to maintain the registration database, we are charging $60/IP per year. Please contact us at firstname.lastname@example.org for more information.
Who are your customers?Our customers are the ones who pay to use our service. They have our highest priority to support.
Is there any performance comparison test done between Tiopan Blacklists and other DNSBLs?Here are a few external links that are testing the Tiopan Blacklists' performance that we are aware of: