On 15 Jun 2005, Paul Johnson wrote:
> On Wednesday June 15 2005 2:16 pm, Mark Nipper wrote:
> > Isn't that really kind of the whole point? If the mail
> > is legitimate (ideally), the remote side will resend in a bit and
> > the tuplet will be recognized as valid at that point for some set
> > period of time (few weeks to months normally).
>
> That's more or less Debian's idea of it. greylistd (which provides
> greylisting for exim4 in Debian) has a default greylist interval of
> 60 minutes and saves tuplets for 2 weeks. It works out really well
> after a day or two.
Oddly enough, the exact setup I run myself! :) I did
have a few people complain though about the initial delay so I
went ahead and scaled it down to 10 minutes instead of the
default 1 hour. I'm sure a few more things get through at this
setting simply because people haven't had time to report junk to
the various RBL's I use also.
>
> > Outside of the initial delay for the first message, any
> > regular e-mail traffic will flow normally as it should.
>
> It does at ursine.ca, so there's at least a small case-in-point.
Same here. No complaints after the first couple of weeks
of operation. People probably don't even realize it is happening
anymore at this point other than the reduced volume of junk.
> > You have to keep an eye on known mailing list hosts of course
> > whenever they change the envelope sender for each message sent from
> > a list and just add the exception as needed.
>
> I haven't had a problem with mailing list hosts, they get whitelisted
> by greylistd just fine on their own.
I've had to add three different list hosts so far:
---
66.35.250.225 # lists-outbound.sourceforge.net
212.16.7.65 # thebsh.namesys.com
63.251.223.186 # lists.developer.com
simply because all of these operate by generating a unique
envelope sender for each outbound message to subscribers. It's
kind of annoying really that lists should do this. I'm also on
the LKML which does NOT do this and is remarkably spam free
given its age and public availability. But I assume the unique
envelope senders help out with bounces and such. Still makes it
annoying with regards to greylisting though.
--
Mark Nipper e-contacts:
4475 Carter Creek Parkway nipsy@???
Apartment 724 http://nipsy.bitgnome.net/
Bryan, Texas, 77802-4481 AIM/Yahoo: texasnipsy ICQ: 66971617
(979)575-3193 MSN: nipsy@???
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