Running the Tool
To use this mode, run the "Comparison Tool" by passing in the API_KEY for querying Abusix Mail Intelligence (which can be found at app.abusix.com), along with the DNS list you wish to compare against and the file containing the IP addresses to check.
Each lookup will result in the tool outputting a log line in CSV (comma-separated values) format, which can be later analyzed. Therefore, you need to redirect stdout to a CSV file.
$ ./ami_compare_linux --apikey API_KEY --list bb.barracudacentral.com ips_to_test > results.csv Processed 27907 items Processed 28104 items Processed 28261 items Processed 28367 items Processed 28505 items Blocked % Unique % Blocked WL % Abusix Mail Intelligence 21125 74.1 20234 95.8 0 0.0 bb.barracudacentral.org 1139 4.0 248 21.8 0 0.0
As shown above, the tool periodically outputs the number of completed lookups. Once finished, it provides a summary table and exits. The summary table includes the following fields:
The number of IPs found to be listed in the blocklist, along with the percentage.
The number of IPs where the IP was only found to be listed on one list and not the other, along with the percentage.
The comparison list shows the number of listed IPs that were found to be listed in the Abusix Mail Intelligence Whitelist, along with the percentage.
The "results.csv" file can be loaded into most spreadsheet applications. By using "Auto Filter," you can analyze all of the results to look for false positives and investigate the results of the lookups.
One drawback of using the comparison tool with log files is that it only provides a simple way to compare Abusix Mail Intelligence with another blocklist. It does not replicate what would happen if you were to add Abusix Mail Intelligence to your SMTP server. To address this, we added real-time/streaming mode.
To use this mode, you must extract the IP addresses hitting your MTAs in real-time. This can be done using UNIX commands such as "tail" and "grep" for a single node or system with a centralized log server. The requirement is that the extraction tool can extract one IP per line.
In real-time/streaming mode, UNIX pipes extract the necessary data, and then the comparison tool is placed at the end of the pipe. Use '-' as the filename to tell the tool to read input from stdin instead of a file.
For example, this is how to extract the necessary data from a Postfix log:
$ tail -f /var/log/mail.log | grep --line-buffered -P '\bconnect from\b' | grep --line-buffered -Po '\d+\.\d+\.\d+\.\d+' | ./ami_compare_linux --apikey API_KEY --list bb.barracudacentral.org - > results.csv Processed 696 items, errors 0, cache hits 0, queue length 115 Count % Unique % Blocked WL % Abusix Mail Intelligence 663 95.3 240 36.2 0 0.0 bb.barracudacentral.org 423 60.8 0 0.0 0 0.0 Not Listed 33 - - - - -
Learn More About the Comparison Tool
Back to the Overview of Abusix Mail Intelligence
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