RBL's

[Mohammed Alli]

I am currently doing rbl, greylist and spf checks the same way as Perter Ong.  I have postfix handling rbls because I want everything blocked at the MTA level.  However, I do have a global whitelist access list for postfix, which queries the MailScanner whitelist table for lookups.  This bypasses rbl, greylist, spf and mailscanner checks for any whitelist entries. 

-----Original Message-----
From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Peter Farrow
Sent: Friday, June 11, 2010 9:30 AM
To: MailScanner discussion
Subject: Re: RBL's

I do the same, but if you're on an RBL you don't get through, end of 
story...

P.

On 11/06/2010 15:20, Peter Ong wrote:
> My number of users isn't nearly as voluminous as everyone's here, but the emails easily reach in the hundreds of thousands. If I configure MailScanner such that if an email address is found only in one RBL, consider it spam; but SORBS contains many false positives. To remedy, I configured MailScanner to consider an email spam if it is seen in 2 spam lists. I use all the ones listed in the spam list file included with MailScanner.
>
> Of course, our spam countermeasures do not rely solely on RBLs, or MailScanner for that matter. On top of it, we have implemented greylisting.
>
> So here's what happens. On the postfix side, we have implemented about a dozen RBLs so many are blocked at the postfix level. If they get past that, they get greylisted. Those that get through get chewed by MailScanner (and sa with the fsl bayes db and full rules emporium rules and clamd with stock and unofficial dbs) and then on to the users.
>
> p
>
>
> ----- Original Message -----
>
>    
>> From: "Richard Mealing"<richard at fastnet.co.uk>
>> To: "MailScanner discussion"<mailscanner at lists.mailscanner.info>
>> Sent: Wednesday, June 9, 2010 7:38:23 AM
>> Subject: RBL's
>>
>> Hi everyone,
>>
>>
>>
>> OT I know, I was just wondering what everyone is using for their RBL’s
>> at MTA level?
>>
>> In light of Sorbs blacklisting everyone at the moment, plus SpamHaus
>> charging for usage, does anyone have any recommendations?
>>
>>
>>
>> I’m currently using Barracuda, Sorbs (with about a million white list
>> entries) and spamcop.
>>
>>
>>
>> Thanks,
>> Rich
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