[sf-lug] List stats 237 --> 217 (2024-12-24)

[Michael Paoli]

My first guess would be various mail providers increasingly tightening
the screws on DMARC.  And the old version of Mailman on linuxmafia.com
doesn't have DMARC workaround capabilities.  So, enough consecutive hard
bounces, and ... unsubscribed.

$ rlog sf-lug_roster | sed -ne
'/2024\/12\/24/{x;p;bn};h;d;:n;n;/^revision /{p;q};bn'
revision 1.273
revision 1.272
$ rcsdiff -U0 -r1.272 -r1.273 sf-lug_roster 2>>/dev/null | grep '^@@ '
| cut -c4 | sort -u
-
$ comm -23 <(co -p1.272 sf-lug_roster 2>>/dev/null | sort) <(co
-p1.273 sf-lug_roster 2>>/dev/null | sort) | sed -e 's/^.*@//;s/>$//'
| sort | uniq -c | sort -k 1bnr -k 2
      5 yahoo.com
      3 hotmail.com
      2 sbcglobal.net
      1 a14n.net
      1 dragishak.com
      1 endlessrenovation.com
      1 gmail.com
      1 live.com
      1 msn.com
      1 outlook.com
      1 pacbell.net
      1 sfsu.edu
      1 yahoo.co.in
$
Nothing but removals, across a fair number of domains, not just one,
or even mostly one - though unsurprisingly yahoo.com predominates,
as it has very strict DMARC policy.

And peeking on linuxmafia.com - the relevnat MTA logs aren't kept
(quite) that long.

On Thu, Jan 2, 2025 at 6:20 PM aaronco36 <aaronco36 at sdf.org> wrote:
> Quoting Ronald Barnes <ron at ronaldbarnes.ca> from
> http://linuxmafia.com/pipermail/sf-lug/2025q1/016079.html
> > YYYY-MM-DD
> > 2024-12-24 217
> > 2024-12-22 237
> That's quite a drop between the 22nd and the 24th, was there some list
> cleanup or a mass unsub event?
> That looks like 3 years of decline in a couple days: