R: Spamassassin Timeout issue.
Charles Lacroix
clacroix at cegep-ste-foy.qc.ca
Wed Sep 10 19:39:55 IST 2008
I'm about to add this rule into my custome rules set :)
body IPHONE_BRAGGER /Sent from my iPhone/i
score IPHONE_BRAGGER 150.0
Alex Neuman van der Hans a écrit :
> Specially since spam *usually* comes in batches from a few discrete
> sources at a time. Splitting recipients at the mta level helps even
> further through SA caching.
>
> Sent from my iPhone
>
> On Sep 10, 2008, at 12:56 PM, "Martin.Hepworth"
> <martinh at solidstatelogic.com> wrote:
>
>> A quick look at the underlying dns protocol will show u why a local
>> caching dns server will speed up queries over even a server <1ms
>> away, and in practice the results can be dramatic for a system like
>> SA/MS that is quite dns hungry.
>>
>> --
>> martin
>>
>> -----Original Message-----
>> From: Chris Sweeney <csweeney at osubucks.org>
>> Sent: Wednesday, September 10, 2008 6:45 PM
>> To: MailScanner discussion <mailscanner at lists.mailscanner.info>
>> Subject: RE: R: Spamassassin Timeout issue.
>>
>>> Personally, I don't think it is a significant difference either way.
>>> If, however, you're running an older version of bind or other DNS
>>> server
>>> that doesn't do random ports, and you don't have the luxury of
>>> upgrading
>>> in the immediate future, using opendns as a forwarder will add a layer
>>> of protection...
>>>
>> It's going to depend on your network path to OpenDNS also. I personally
>> have never found it faster to go off network (OpenDNS) then do lookups
>> myself. Especially on a mail server since alot of your SPAM comes in
>> batches the lookups to the same domain are going to much significanly
>> faster in that respect.
>>
>> I've tried OpenDNS quite a few times and although its good and it is
>> fast
>> it has never beat going local in my test enough to increase my traffic
>> going out/in from the internet.
>>
>>
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