Re: Email Graylisting

In our previous episode (Friday, 05-Apr-2013), Ashley Aitken said:
> My question is: do people still use graylisting? =20

I do not use it anymore as I was finding I needed to pay attention to =
the logs a lot more than I wanted to to try and account for idiot mail =
servers, however, I was running it in 2005-2009, and it's possible it's =
more effective now than it was and that fewer companies do stupid things =
like:

whitelist:
# greylisting.org: Amazon.com (unique sender with letters)
amazon.com
# 2004-05-20: Linux kernel mailing-list (unique sender with letters)
vger.kernel.org
# 2004-06-02: karger.ch, no retry
karger.ch
# 2004-06-02: lilys.ch, (slow: 4 hours)
server-x001.hostpoint.ch
# 2004-06-09: roche.com (no retry)
gw.bas.roche.com
# 2004-06-09: newsletter (no retry)
mail.hhlaw.com
# 2004-06-09: no retry (reported by Ralph Hildebrandt)
prd051.appliedbiosystems.com
# 2004-06-17: swissre.com (no retry)
swissre.com
# 2004-06-17: dowjones.com newsletter (unique sender with letters)
returns.dowjones.com

I would look at enabling postscreen (a module of postfix) instead, as it =
can do what postgrey does, and more.

I haven't run it myself because I am constrained on updating my postfix =
build.

The docs:

<http://www.postfix.org/POSTSCREEN_README.html>

Here's a post on setting up postscreen.

<http://permalink.gmane.org/gmane.mail.postfix.user/218114>

--=20
I never read much; I have something else to do.