How Many Rbl ??

[Peter Farrow]

Glenn Steen wrote:
> On 20/03/2008, Matt Kettler <mkettler at evi-inc.com> wrote:
>   
>> Andrea Bazzanini wrote:
>>  > Hello Guys..
>>  >
>>  > Realy esay question ...
>>  >
>>  > How many RBL ... in your opinion must be check by MS ???
>>  >
>>  > I have added 5 rbl into my MS config file .... spamcop, spamhouse etc....
>>  >
>>  > Thanks !!!
>>
>>
>> The answer depends a lot on how bad FPs are for you.
>>
>>  I trust zero RBLs enough to use for outright blacklisting.
>>
>>  At the MTA layer, I use 3 RBLs to trigger greylisting. (yes, unlike most
>>  greylist configs, I don't greylist by default, but use milter-greylist's access
>>  lists to selectively greylist email that's highly likely to be spam). This is
>>     
> (Aside: I'm meaning to implement this, since it would be OK with the
> current Swedish laws.... AICS... and would help... You're not the only
> one sitting up and paying attention Matt:-):-))
>   
>>  acceptable to me, as the only consequence of false positive is late email.
>>
>>  At the MailScanner layer, I use 0 RBLs, as I trust no RBL completely.
>>     
> Actually... If you want a block, but not a reject..... This is where
> I'd put the very few (1, perhaps 2)... But only if your spamactions
> include "store"... or are only labling as SPAM.
>
>   
>>  At the SpamAssassin layer, I use all the default RBLs. That's acceptable to me
>>  because the scoring mechanism makes it very unlikely the RBL will cause a FP, as
>>  it would also have to match other spam rules.
>>
>>     
> Same here.
>
> Cheers & Happy Easter!
>   
I do all my RBL blacklisting at MTA level, I use the main ones such as 
Spamcop and Spamhaus plus a few others, if you're on a blacklist I don't 
accept email from you period....no ifs no buts,  I process a few million 
emails a month for my clients and get no complaints!

It reduces the load dramatically on the MailScanners because its a black 
and white decision made at MTA level.

Works flawlessly for me and my clients...

Regards

Pete

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