cut off by spamhaus free use?

[Scott Silva]

on 12/2/2007 2:07 PM Jeff Mills spake the following:
>  
> 
>> -----Original Message-----
>> From: mailscanner-bounces at lists.mailscanner.info 
>> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf 
>> Of Jeff A. Earickson
>> Sent: Monday, 3 December 2007 8:45 AM
>> To: mailscanner mailing list
>> Subject: OT: cut off by spamhaus free use?
>>
>> Gang,
>>
>> Has anybody ever had SpamHaus cut off the free use of DNSBL 
>> for your site?  All of our inbound email started getting this:
>>
>> reject=451 4.4.3 Temporary lookup failure of [IP number] at 
>> zen.spamhaus.org
>>
>> on Saturday morning.  I removed Zen usage from my sendmail 
>> config and my email started flowing in again.  I looked at 
>> their usage page 
>> (http://www.spamhaus.org/organization/dnsblusage.html)
>> and believe I meet their qualifications (I use caching DNS on 
>> our sendmail box too).  But maybe they disagree; I haven't heard back.
>>
>> Anybody else ever had the rug pulled out from under their email?
> 
> Yes it happened to one of my installs. Unfortunately, somebody had used
> their domain name in a spam attack, so the server got thousands of extra
> inbound emails. It was enough for spamhaus to block the servers.
> 
And it appears that it is an automated process to be blocked, but only a 
manual unblock.

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