-----Original Message----- From: Jeff Chan jeffc@surbl.org Date: Thu, 16 Dec 2004 16:35:20 -0800 Subject: Re: [SURBL-Discuss] Thunderbird and SURBL? To: Chris Santerre csanterre@merchantsoverseas.com Cc: "tim-surbl@kosmo.com" tim-surbl@kosmo.com, SURBL Discussion list discuss@lists.surbl.org
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We have high regards for the SURBL folks and it is in the mix of many methods we use to combat spam at SimpleFilter. We have a POP3 and SMTP service that uses the same backend anti-spam engine and can be used from Thunderbird as it works with any POP3 email client. The SMTP service has some additional features I won't go into here.
Hi Tim!
Are you saying you will check during download and not download the messege if it thinks it is spam? Cause that would give you an A+ in my book!
And a D+ in my book. It's more efficient to do these checks in the mail server. If every POP3 user started checking all of their mail against SURBLs (or other RBLs) our name servers would start melting.
Can we get an A+ re-instated!!! :) Everything is done on the server. We provide a service for POP3 not a client program of any sorts.
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.