On Friday, December 17, 2004, 2:25:56 PM, Tim A wrote:
From: Jeff Chan jeffc@surbl.org
Tim, If you're going to do this, please make sure your program is internally caching the lookups pretty heavily. For example, make sure it's not checking the same domain more than once per message (if it appears multiple times in the same message for example).
We are and have been caching lookups.
And secondly, please make sure you have a local whitelist! We have seen other companies using SURBL that don't whitelist the top doamins, like yahoo.com, w3.org, google.com,........ Those kinds of domains should be skipped from being looked up.
Yes, please whitelist (don't check) say the top 100-200 of our most often hit whitelist entries:
http://www.surbl.org/dns-queries.whitelist.counts.txt
That will save many unnecessary DNS queries.
Will look into this.
Thanks!
Jeff C. -- "If it appears in hams, then don't list it."