Re: exim и greylist (!DKIM)

[Eugene Berdnikov <bd4@protva.ru>]

On Tue, Sep 19, 2017 at 12:13:30PM +0300, Andrey Jr. Melnikov wrote:
> Eugene Berdnikov <bd4@protva.ru> wrote:
> >  Ну а поскольку грейлистинг на стадии RCPT убивает 97-98% спама, то
> >  переность его на стадию DATA ради привязки к DKIM нет никакого смысла.
> Да не убивает он ничего уже давно, как и SPF. Так, только делает вид.

# greylist stats                                         root@passat 0:08
Statistics since Tue Feb 13 16:22:00 2007 (3871 days and 8 hours ago)
---------------------------------------------------------------------
4202 items, matching 326526 requests, are currently whitelisted
   0 items, matching      0 requests, are currently blacklisted
  85 items, matching    142 requests, are currently greylisted

Of 16268935 items that were initially greylisted:
 -  1772014 ( 10.9%) became whitelisted
 - 14496921 ( 89.1%) expired from the greylist

# greylist stats                                        root@typhoon 0:08
Statistics since Tue Feb 13 16:22:00 2007 (3871 days and 8 hours ago)
---------------------------------------------------------------------
3729 items, matching 336816 requests, are currently whitelisted
   0 items, matching      0 requests, are currently blacklisted
  61 items, matching    113 requests, are currently greylisted

Of 15201268 items that were initially greylisted:
 -  1714227 ( 11.3%) became whitelisted
 - 13487041 ( 88.7%) expired from the greylist

# greylist stats                                        root@tornado 0:09
Statistics
----------
3729 items, matching 350488 requests, are currently whitelisted
   0 items, matching      0 requests, are currently blacklisted
  61 items, matching    113 requests, are currently greylisted

Of 11104242 items that were initially greylisted:
 -  1328121 ( 12.0%) became whitelisted
 -  9776121 ( 88.0%) expired from the greylist

# greylist stats                                        root@citrine 0:09
Statistics
----------
3812 items, matching 374019 requests, are currently whitelisted
   0 items, matching      0 requests, are currently blacklisted
  63 items, matching    115 requests, are currently greylisted

Of 11206337 items that were initially greylisted:
 -  1339635 ( 12.0%) became whitelisted
 -  9866702 ( 88.0%) expired from the greylist

 Правда, тут не чистая статистика, а после выполнения sender verify.
 Так что подтвердить слова о 97-98% не могу, но утверждение о том, что
 грейлистинг "давно не работает", это явно преувеличение. :)

 А вот эффект от проверки SPF действительно весьма скромный.
-- 
 Eugene Berdnikov