Next Release or something |
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Terry 
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Joined: 06 February 2005 Status: Offline Points: 155 |
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 Topic: Next Release or somethingPosted: 15 May 2005 at 1:58pm |
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Can we add an option where if the incoming connection gets a dns error it can be quarantined. I am seeing a lot of "China" connections that get a dns error but the spamfilter lets them through.....wish it wouldn't do that...have I missed a setting somewhere? |
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Desperado
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Joined: 27 January 2005 Location: United States Status: Offline Points: 1143 |
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Posted: 15 May 2005 at 2:30pm |
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Terry, What you are asking for, in principal, is good in many cases but, DNS Servers do fail or go down or become slow ans blocking messages due to DNS failures would cause potential false positives. I end up parsing my logs and run scripts to add ip's that fail dns more than 3 times in a 60 minute eriod and still I run the risk of falsly bocking. regards, Edited by Desperado |
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The Desperado
Dan Seligmann. Work: http://www.mags.net Personal: http://www.desperado.com |
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LogSat
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Joined: 25 January 2005 Location: United States Status: Offline Points: 4105 |
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Posted: 15 May 2005 at 7:34pm |
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DNS timeouts are unfortunately too common to quarantine emails if one
occurs - it would generate too many false positives. We're not inclined
to add this feature in...
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lead
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Joined: 08 March 2005 Status: Offline Points: 18 |
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Posted: 16 May 2005 at 12:00pm |
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I find too many DNS failures as well. The only (and complex
way) I can see around this is to semi-quarantine email and attempt DNS
resolves on them at a later time. After so many attempts the quarantine
becomes solid. However I don't think spamfilter should do this, as it
sounds like something too easy to break.
Edited by lead |
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Desperado
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Joined: 27 January 2005 Location: United States Status: Offline Points: 1143 |
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Posted: 16 May 2005 at 2:08pm |
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Hmmm ... You may be on to something. How about if a message that doesn't resolve (rdns) gets queued and will only deliver once it *does* resolve? Then the "ExpireRetryQueueHours=" setting will remove it after the retry time expires. Roberto, is this possible? Regards, |
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The Desperado
Dan Seligmann. Work: http://www.mags.net Personal: http://www.desperado.com |
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LogSat
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Joined: 25 January 2005 Location: United States Status: Offline Points: 4105 |
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Posted: 16 May 2005 at 11:32pm |
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Not now, in theory it could be added, but it *really* would be
confusing both in coding and in operating it... I'd rather archive this
for a while...
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