1 |
> > Do you think the reject_rbl_client stuff is safer than greylisting? |
2 |
> > |
3 |
> > - Grant |
4 |
> |
5 |
> 1. Blacklists have the HIGHEST false positive rate of any anti-spam |
6 |
> technique other than sending all mail to /dev/null. 34% |
7 |
> http://www.paulgraham.com/falsepositives.html |
8 |
> |
9 |
> 2. Blacklists block the least amount of spam. 24% |
10 |
> So it's wrong more often than right. |
11 |
> |
12 |
> 3. All Blacklists are run by jackasses. Yes, even the ones you like. |
13 |
> http://www.internetnews.com/xSP/article.php/8_1143551 |
14 |
> http://www.peacefire.org/anti-spam/group-statement.5-17-2001.html |
15 |
> http://www.networkworld.com/research/2001/0910feat.html |
16 |
> |
17 |
> and far too much personal experience* |
18 |
> |
19 |
> In my experience over the past two to three years greylisting and |
20 |
> simple header checks have blocked 99% of spam before it gets to the |
21 |
> queue and generated less admin overhead with false positives and other |
22 |
> nonsense. I'd call its accuracy a solid 99.9% since I've only had to |
23 |
> whitelist three sets of servers over the years, YMMV. It might not be |
24 |
> 99.9 for everyone, but it will be far better than blacklisting. There |
25 |
> are some quirks with greylisting, but overall it's been very effective |
26 |
> without much downside. |
27 |
> |
28 |
> I can't say enough bad things about blacklisting. |
29 |
> |
30 |
> kashani |
31 |
> |
32 |
> * The first ISP I worked for actually hosted public.com which has |
33 |
> probably been the most hijacked domain ever. It's a fun Monday morning |
34 |
> when some moron decided to block your entire ISP without actually |
35 |
> looking at the headers. It gets slightly less fun the fifth and sixth |
36 |
> time it happens. Homicide is considered when they assume they are |
37 |
> automatically right, are as rude as possible to you, and then stall for |
38 |
> a day before they grudgingly remove you. |
39 |
|
40 |
I've removed the blacklisting and thank you very much for your |
41 |
response. I guess I'm back to greylisting and/or content filtering. |
42 |
|
43 |
- Grant |
44 |
-- |
45 |
gentoo-user@g.o mailing list |