On Mon, 12 Mar 2012 17:58:22 +0100
Simon Loewenthal <si...@klunky.co.uk> wrote:

>  At first glance:
> This is private black list of email assesses maintened by many.  Free
> to use, but it'll turn into a huge file for a server to parse.

Well yes, if you aren't smart about how you use it. :)

We use it by throwing away any entries older than 6 months and putting
the rest in a database.  We happen to use PostgreSQL, but you could
also use something like Berkeley DB.  Then lookups are fast.

>  I should rather block content not email addresses.

I think an email address *known* to have been compromised is a fine thing
to block, especially if you block mail going *to* that address.

The list of phishing URLs is potentially very useful too, but as I said, we
haven't started using those yet.

Regards,

David.

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