As of 8/20/04, SURBL is using TTLs of 25 minutes from http://www.surbl.org/news.html:
8/20/04: As part of our continuing TTL experiment, we have set the TTLs on all lists to 25 minutes. If the resulting DNS traffic does not change much, then we will leave the slower-changing lists at 25 minutes and change SC back to 10 minutes. Additionally, you can rsync the database and run it locally. Regards, KAM > This is a good thought, but caching of DNS records defeats this. I > know that most BLs have low TTL in the records, but lower than about an > hour would cause a lot of extra network traffic, especially on the "not > found" responses. _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
