Re: [exim] net-search

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Author: W B Hacker
Date:  
To: exim users
Subject: Re: [exim] net-search
Matt wrote:
> The list is updated every 5 minutes based on Spamassassin scores. Any
> servers that score less then zero are added but removed if they send a
> message that scores over 5. Entries are only kept if they have been active
> in last 28 days.
>



I'd not worry about 5K, then.

I *would* suggest something 'cron'ish to advise you if it suddenly started
growing more than expected.

> Cannot believe how effective greylisting has been in reducing volume of
> email.
>
> Matt
>


No Freudian slip, that one.

Too bad it isn't all spam.

Similar isue with our hard-fail on rDNS. Brutal.

But efficient.

Bill


>
> On Tue, May 12, 2009 at 3:33 PM, W B Hacker <wbh@???> wrote:
>
>> Matt wrote:
>>> I have this entry in exim.conf:
>>>
>>> defer log_message = greylisted
>>>         !hosts = net-lsearch;/etc/virtual/trusted_ips
>>> Basically I do not want to greylist any of the IP's in
>>> /etc/virtual/trusted_ips.  Is there a limit on the number of IP's I can
>> have
>>> in this file?  I have about 5k IP's in it right now.

>>>
>>> Matt
>> Other than time-to-traverse, I'm not aware that Exim itself has a limit.
>>
>> Your file-system DOES have limits, but you are probsbly not even close to
>> it by
>> two or more orders of magnitude.
>>
>> EX: Just did an 'ANALYZE VERBOSE brownlist;' and find 954,773 IP-based
>> records
>> here, though those are in a PostgreSQL DB, not raw fs.
>>
>> At 5k IP's, not sure a Database Engine would meet 'payback' criteria.
>>
>> If this is a fairly static list, OTOH, a CDB or such might be a better move
>> than
>> *either* flat-file or SQL RDBMS.
>>
>> HTH,
>>
>> Bill
>>
>>
>>
>> --
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