zen - not just a MAPS list
Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6189
Printed Date: 02 July 2025 at 8:48pm
Topic: zen - not just a MAPS list
Posted By: sgeorge
Subject: zen - not just a MAPS list
Date Posted: 09 August 2007 at 2:01pm
|
I found something interesting today some may already know and just thought I'd share... spamhaus.org provides various lists you can use as MAPS blacklists. But I just noticed this blurb on their site which indicates that you can also use one of their lists as a SURBL blacklist within SpamFilter as well:
I've just added zen.spamhaus.org to my SURBL list, and verified that it's working. However, I haven't run it long enough to have a solid report on how effective and accurate it is (though it seems to use the same exact data as it's equivalent spamhaus MAPS list, which I find to be very accurate). I'll let you all know if my results are postivie or negative. To satisfy the curious, here are my current SURBL lists in SpamFilter: multi.surbl.org multi.uribl.com zen.spamhaus.org Happy spam-bobbing, Stephen |
from http://www.spamhaus.org/faq/answers.lasso?section=DNSBL%20How%20To%20Use#203 - http://www.spamhaus.org/faq/answers.lasso?section=DNSBL%20Ho w%20To%20Use#203 Replies:
Posted By: sgeorge
Date Posted: 09 August 2007 at 2:30pm
|
An observation... If an i.p. address is listed on zen.spamhaus.org, you can expect the equivalent http://i.p.-address to make a match on the zen.spamhaus.or SURBL. However, if you do a reverse-dns on that i.p., don't expect that URL to be matched on the SURBL. :( Stephen |
Posted By: Desperado
Date Posted: 10 August 2007 at 10:55am
|
Stephen, I actually use the following: ------------- The Desperado Dan Seligmann. Work: http://www.mags.net Personal: http://www.desperado.com |
Posted By: sgeorge
Date Posted: 10 August 2007 at 12:31pm
|
Thanks Dan. I agree that multi.uribl.com is a bit aggressive, which gives me some thought about whether or not to switch to black. After our first 24-hours with the zen on our SURBL lists, it hasn't caught anything that our other two SURBL entries didn't catch. However, we are not an ISP, and process much less email compared to many other SF customers. The other factor is that I'm noticing that the SURBL list is alphabetically sorted. With MAPS, I can put zen on top and I can read our quarantine to see effective zen is. But with zen on the bottom, it can't get the "credit" for blocking a message if the message is first blocked by one of the other SUBRL lists. But it's a very minor detail that in all, is not that important (in other words, not a feature request). Dan, what's your experience been with zen as a SURBL in the past month? Have your noticed it catching anything that the others could not? Thanks, Stephen |
Posted By: Desperado
Date Posted: 10 August 2007 at 12:42pm
|
Stephen, Jeezzze! You read my mind. I just emailed Logsat on the sorting issue! On the zen list ... VERY few but as you say, the sort forces it to the end so it is not a "fair" test. I am still trying to judge if the extra lookup is worth the blocking gain. On the DNSBL's, I added psbl.surriel.com. This seems to be a good list and will accept nearly instant de-listings in the case of false blocks which is nice. I have it last in my list and it catches a fair amount that my other 3 do not. ------------- The Desperado Dan Seligmann. Work: http://www.mags.net Personal: http://www.desperado.com |
Posted By: sgeorge
Date Posted: 10 August 2007 at 5:06pm
|
Thanks Dan. :) And thanks for the heads-up on psbl.surriel.com. Nice to see a list admin who really "gets it". Even people who want to block spam don't want hoops of flame for senders to jump through to get unblocked. A person's tolerance level for spam, while low, is always 10 times higher than then they have for false-positives. Have a good weekend, -S |