Spam Filter ISP Forums : RBL cache https://www.logsat.com/spamfilter/forums/ Mon, 10 Aug 2026 06:16:20 +0000 Fri, 23 May 2003 01:18:00 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.04 360 https://www.logsat.com/spamfilter/forums/RSS_post_feed.asp?TID=552 <![CDATA[Spam Filter ISP Forums]]> https://www.logsat.com/spamfilter/forums/forum_images/web_wiz_forums.png https://www.logsat.com/spamfilter/forums/ <![CDATA[RBL cache : Due to our fairly high mail volume,...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=552&PID=661&title=rbl-cache#661 Author: Desperado
Subject: 552
Posted: 23 May 2003 at 1:18am

Due to our fairly high mail volume, we run our own dnsbl server and use it as a "Proxy" to get answers from the rbl lists we desire. We can the cache on our local DNS server (located on our mail server). Our mail server doesn't know anything about our "real" public DNS servers.  We set the ttl to 30 minutes since most spam seem to come in "Bursts".

Dan S.

 

]]> Fri, 23 May 2003 01:18:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=552&PID=661&title=rbl-cache#661 <![CDATA[RBL cache : It&#039;s pretty high. We should...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=552&PID=572&title=rbl-cache#572 Author: LogSat
Subject: 552
Posted: 15 May 2003 at 10:26pm

It's pretty high. We should have ready within a couple of weeks.

Roberto
LogSat Software

]]> Thu, 15 May 2003 22:26:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=552&PID=572&title=rbl-cache#572 <![CDATA[RBL cache : Filtering is working great. I&#039;minterested...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=552&PID=552&title=rbl-cache#552 Author: Guests
Subject: 552
Posted: 15 May 2003 at 12:43pm

Filtering is working great.

 I'm interested in performance issues.  How high up on the list is RBL cache?  A TTL of 24hrs would work for me.  On weekends I watch the activity and I see about 50% of the SAPM coming from just a few IP addresses.  They are all blacklisted.  I was hit with about 20,000 connections from a small number of addresses over a period of less than 24 hours.

You could also have a "flush" command to empty the cache.

Keep up the good work.

Thanks,

James Taylor

jltaylor@metrotel.net

903-793-1953

 

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