From: mouss (mlist.onlyfree.fr)
Date: Tue Jan 09 2007 - 10:17:03 CST

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Udo Rader wrote:
> On Mon, 2007-01-08 at 15:46 -0700, Warner, Steve wrote:
>
>> Here at the university we are a small department with about 85 users on
>> exchange behind a unix postfix machine. I want to start using some
>> RBL's. I have noticed mention of some recently on this list. I have seen
>> the zen.spamhaus.org RBL spoken here on the list with relatively
>> favorable comments. What are some other perhaps good free (the boss
>> likes free) or perhaps low cost RBL's. We have trend micro systems
>> pc-cillen on the micro*&%$ boxes. I called them and they appear to want
>> about $2.25 per user for the RBL+ product, does anybody have good or bad
>> comments on this pay service? I know I will need to research the
>> policies of RBL's to see if they fit our shop.
>>
>
> we've not used it so far, but obviously it is not free (it would be for
> your 85 users, but that's certainly not much :-).
>
> from the www.spamhaus.org/zen homepage:
>
> -------CUT-------
> Zen Usage
> Use of the Spamhaus DNSBLs via DNS queries to our public DNSBL mirrors
> is free for low-traffic mail servers serving less than 100 users. Use of
> the Spamhaus DNSBLs by commercial users, including corporate networks,
> ISPs and ESPs, requires a subscription to Spamhaus's Data Feed service.
> -------CUT-------
>
> Pricing starts at 300 USD for <= 100 users.
>
>

the issue is if you do a lot of queries, you should get their flow, and
pay. otherwise, use it directly for free.

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