Greetpause seems very ineffective (Was: RE: Increased Volumes Of Spam)

[Res]

On Sun, 21 Jan 2007, Michael Baird wrote:

> Not if they are working properly, they should retry immediately to
> another MX, at which time the tuple would have been propagated between

your statement works assuming they are linked to same DB, but of course 
retries would be instant, most the grey lame servs wont accept you  if 
you connect in seconds (sourceforge servers for eg dont work that way)
so back you go into the queue to be retried later.

> MailScanner imposes a much greater delay per message then what you will
> see with Greylisting, so if this is truly your goal, you should dismiss

thats the most stupdist comment ive seen no this list, ever, no it 
does not.

>From time of acceptance, the mail is typcially in their mailbox (or mail 
dir if its one of the qmail servers) within no more than 30 seconds, 
typically its 5.

> Clearly you don't care very much either, since you are delaying each and
> every mail by a significant amount processing them via MailScanner.

Not on my setup. greet pause, blocking no RDNS because idiot 
incompetant admins dont know how to configure DNS, blocking bad helo,
and 4 RBL's, means mostly legit email only gets through, there is 13 msgs 
from past 7 days in the high scored quarantine directory, high score here 
is set to 10.

> Maybe if you used greylisting you could bring the batch processing times
> down though, and bring the delay per message imposed by MailScanner down
> a bit (certainly for legit mail).

I fail to see the delay? I dont exactly use desktop PC's
I use batch size of 50 and have 20 copies mailscanner running (4 real 
CPUs x5 which is what is recommended) I use 1 gig ram drive, the setup 
works nicely i'm not about to screw with it, based on the stats i have.

so I tell you what, when I see constant delays of more than several 
minutes I will put it on one of the boxes and see if it makes any 
difference, but i know i wont be doing it any year soon :)


-- 
Cheers
Res

"So, you think you can tell Heaven from Hell?" - Roger Waters