Scalability of 'spam.whitelist.rules' facility

[Randal, Phil]

Is there no obvious pattern in the email addresses to be whitelisted?

Or spamassassin rules they are falling foul of?

The problem with whitelisting "From:" email addresses is that this will
let in spams spoofing these from addresses.

You should only really be using whitelist_from_rcvd, whitelist_from_spf,
whitelist_from_dkim etc in spamassassin.

Our spam.whitelist.rules only includes 127.0.0.1, nothing more.

It looks like you're trying to work around another problem rather than
trying to address root causes.

Cheers,

Phil
--
Phil Randal
Network Engineer
Herefordshire Council
Hereford, UK  

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info 
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf 
> Of Quentin Campbell
> Sent: 21 May 2007 10:07
> To: mailscanner at lists.mailscanner.info
> Subject: Scalability of 'spam.whitelist.rules' facility
> 
> Our 'spam.whitelist.rules' file currently has over 4,000 
> entries and is
> growing at the rate of about 200-300 entries each week.
> 
> At what point does the number of entries in the whitelist file become
> 'too many' and impact the performance of MailScanner?
> 
> If all of our users requested just one address each to be whitelisted
> then 'spam.whitelist.rules' would have more than 20,000 entries!
> 
> [The increase in requests to whitelist is probably because 
> the recently
> enabled Bayesian filter in SpamAssassin has had a significant 
> impact on
> increasing the amount of tagged spam but at the cost of an increase in
> false positives.]
> 
> Quentin 
> ---
> PHONE: +44 191 222 8209    Information Systems and Services (ISS),
>                            Newcastle University,
>                            Newcastle upon Tyne,
> FAX:   +44 191 222 8765    United Kingdom, NE1 7RU.
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