In article <c7afa751-330d-4e6c-b3a8-642455616...@bsdly.net> Peter Nicolai 
Mathias Hansteen <pe...@bsdly.net> wrote:
> It is a possibly desirable feature, but I an not aware whether any of the 
> currently capable developers are considering putting in the work to implement 
> it.
> 

Let me finish the idea, not with the intention to pressure developers
asking for features but to share my experience and thoughts about the
issue.

I've also been publishing (long) blacklists in my website as you do.  As
an experiment I didn't expire any until recently when, as I explained,
they reached the hard limit in memory (2000000).  And, as I suggested,
right before I expired addresses old spam, recognizable by the format,
appeared again.

The problem is most system administrators out there do very little.  If
you were getting spam or attacks from some IP, even if you report the
issue to the respective whois abuse@ address, chances are attacks from
that IP won't stop next week, nor even next month.

So, in general terms, I would refrain as much as possible from hurry to
expiring addresses.  Just my opinion.

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