New Post
I am writing to request an enhancement to the PowerSPF analysis functionality.
Currently, the analysis provides email counts for each include.
However, it would be highly beneficial if the feature could further break down these counts by individual IP addresses within each include.
This enhancement is particularly important in the context of mitigating BreakSPF attacks (please refer to the research paper: https://www.researchgate.net/publication/373144390_BreakSPF_How_Shared_Infrastructures_Magnify_SPF_Vulnerabilities_Across_the_Internet). The demand for MTA obfuscation using SPF macros in PowerSPF is increasing as a countermeasure against such attacks.
The paper highlights the issue of excessively broad IP ranges in the includes of various service providers.
To effectively address this issue with our vendors, we require not just the email counts for each include but also the counts for each IP address.
This detailed breakdown is essential for thorough analysis and informed decision-making.