nobaloney
NoBaloney Internet Svcs - In Memoriam †
You may have wondered how I choose blocklists.
The first thing I do is research who others are using, and why or why not, specific lists are being used.
Then after choosing the lists I think I'll use, I pick an arbitrary order, and install them on the server hosting mail for my domains.
Then I watch them for at least a week to make refinements in the order in which i use them. The lists that have restrictive usage policies generally (but not always), go on the bottom.
Finally I find an order which seems effective, and I publish the list.
So now that the new SpamBlocker-powered exim.conf file Version 4 has been out for a while, I've decided to revisit the blocklist issue again. So I did some checking again.
This time I checked on the block rate of the all the used DNS-based lists over the last month (ending 4am this morning) and again on the server on which I host my own domain names.
I found some interesting results:
Based on this list, I'm going to check all our other servers, and if the results are similar I know I'll be making some changes to the master; some of these lists just aren't worth checking for the small results we get; it doesn't seem realistic to check a half million emails against a blocklist for a total of between 0 and 46 catches.
However I'll probably leave all of them in the published file; your spam profile may be considerably different from mine.
Jeff
The first thing I do is research who others are using, and why or why not, specific lists are being used.
Then after choosing the lists I think I'll use, I pick an arbitrary order, and install them on the server hosting mail for my domains.
Then I watch them for at least a week to make refinements in the order in which i use them. The lists that have restrictive usage policies generally (but not always), go on the bottom.
Finally I find an order which seems effective, and I publish the list.
So now that the new SpamBlocker-powered exim.conf file Version 4 has been out for a while, I've decided to revisit the blocklist issue again. So I did some checking again.
This time I checked on the block rate of the all the used DNS-based lists over the last month (ending 4am this morning) and again on the server on which I host my own domain names.
I found some interesting results:
Code:
# of
emails blocklist
14827 cbl.abuseat.org
1065 dnsbl.njabl.org
3247 bl.spamcop.net
46 dnsbl.ahbl.org
0 combined.rbl.msrbl.net
36235 b.barracudacentral.org
5409 zen.spamhaus.org
4109 hostkarma.junkemailfilter.com=127.0.0.2
28 rhsbl.ahbl.org
However I'll probably leave all of them in the published file; your spam profile may be considerably different from mine.
Jeff