Hi Daniel,

> On 4 Jan 2026, at 19:28, Daniel Colquitt via mailop <[email protected]> wrote:
> 
> Thanks, Peter. I recall seeing your post,
>> The greytrapping retrospective at 
>> https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html
>> (also with GOOG's trackers at 
>> https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html)
>> might be useful.
> sometime last year, but couldn’t find today it amongst all the “newsletter 
> optimisation” posts.
> 
> It’s a long shot, but do you have any stats (or failing that a gut feeling) 
> regarding the proportion of spam caught in your spamtraps from sources not 
> listed in the standard DNSBLs? I drop traffic from listed IPs at the CONNECT 
> stage, so I wonder how effective spamtraps will be without my having to spin 
> up a separate MX.

I really don't have any statistics on that, but it might be interesting to find 
out.

If you want to run analyses I can make at archived spamd logs available. I have 
weekly archives going back to late 2021, but I suppose a smaller sample might 
be just as useful?

All the best,
Peter

-- 
Peter N. M. Hansteen, member of the first RFC 1149 implementation team
https://nxdomain.no/~peter/blogposts https://nostarch.com/book-of-pf-4th-edition
"Remember to set the evil bit on all malicious network traffic"
delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.




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