[Users] Errors on official forums

[Barry de Graaff]

For Postfix MTA:
https://blog.zimbra.com/2022/08/are-you-using-zen-spamhaus-org-or-dbl-spamhaus-org-for-fighting-spam-pay-attention/

For Postscreen, has the same issue:
https://wiki.zimbra.com/wiki/Zimbra_Collaboration_Postscreen

The blogified version of postscreen is scheduled for January, but is the 
same as the wiki

On 2022-11-03 20:12, L Mark Stone wrote:
> Hey Team,
> 
>  I just got off a Zoom call with Spamhaus.  Noah likely hit the nail
> on the head. Basically, it works like this...
> 
>  If you are doing lookups to <whatever>.spamhaus._org_, (as we all did
> for years) that's likely to be a problem.  The .org servers are ONLY
> for home users and non-profits, and queries that come from the big
> public resolvers (Google 8.8.8.8 and 8.8.4.4, OpenDNS etc.) are
> unsuccessful.
> 
>  The volume of queries in the past few years has increased
> dramatically, so to better manage their infrastructure and filter out
> abusers, Spamhaus wants to know who is using their service.
> 
>  You can still register for a free DQS account (if you qualify), and
> if you don't, or if you want the extra features, you can get a paid
> DQS account.  Either way, you'll then have an account key that queries
> <account key.whatever.spamhaus._net_.
> 
>  Queries to spamhaus._net_ servers can come from anywhere, even from
> Google, OpenDNS etc.  But because each query comes with a code,
> Spamhaus knows who is making the query, and whether a free user is
> exceeding the limits.
> 
>  Barry covered this in his blog post a while back.
> 
>  Bottom Line:
> 
>  	* Register for a DQS account (free or paid).
> 	* Update your config and make sure you are querying spamhaus._net_,
> not ._org._
> 
> 	*
> 
>  Hope that helps,
>  Mark
> 
> _________________________________________________
> 
> L. Mark Stone
> 
> -------------------------
> 
> From: Barry de Graaff <info at barrydegraaff.nl>
> Sent: Thursday, November 3, 2022 2:58 PM
> To: L Mark Stone <lmstone at lmstone.com>
> Cc: Tony Publiski <tonster at tonster.com>; users
> <users at lists.zetalliance.org>
> Subject: Re: [Users] Errors on official forums
> 
> The result displayed on the forums is the same as what I have seen
> with
> legitimate email blocking.
> 
> Spamhaus just rejects everything and does not do a lookup at all.
> 
> So it does not matter what your IP is or if it is listed.
> 
> On 2022-11-03 19:20, L Mark Stone wrote:
>> What David is experiencing is exactly what I am experiencing trying
>> to moderate the forums.
>> 
>>  Similarly, my home office has a static IP. There are no servers
> here;
>> nothing that would/could send out email, and a beefy security
>> appliance on the front door anyway. When the forums say my IP is
>> listed, the Spamhaus website says otherwise.
>> 
>>  I've reached out to one of my customers who was experiencing this
>> yesterday to ask them about their on-prem DNS setup, and their
> account
>> status with Spamhaus.
>> 
>>  I agree Noah's separate email quoting
>> https://www.spamhaus.org/returnc/pub/ is likely describing the root
>> cause, but I have a call with Spamhaus Support in 10 minutes so will
>> post back what I learn.
>> 
>>  All the best,
>>  Mark
>> 
>> _________________________________________________
>> 
>> L. Mark Stone
>> 
>> -------------------------
>> 
>> From: Users <users-bounces at lists.zetalliance.org> on behalf of Tony
>> Publiski via Users <users at lists.zetalliance.org>
>> Sent: Thursday, November 3, 2022 12:59 PM
>> To: Barry de Graaff <info at barrydegraaff.nl>
>> Cc: users <users at lists.zetalliance.org>
>> Subject: Re: [Users] Errors on official forums