Can you provide the email, don't see anything posted online about it.  

Tim,

I forgot you need to subscribe to view the archives.

Quote:

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Michelle also posted it to her LinkedIn page: https://au.linkedin.com/in/sorbs

Link

Appreciate the heads up on this.  We will start making plans to remove from SmarterMail.

"Plans", doesn't mean we are doing it now!

Seriously, if you suspect the list is down, I would just run a dig +trace.

IE: dig +trace 2.0.0.127.dnsbl.sorbs.net

It should respond back on most of the lists:

2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.10
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.5
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.7
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.2
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.3
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.15
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.9
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.14
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.4
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.6
2.0.0.127.dnsbl.sorbs.net. 3600 IN      A       127.0.0.8

The Register (https://www.theregister.com/2024/06/07/sorbs_closed/) seems to have got an official response from proofpoint regards the shutdown:

"The decision to sunset a product is never an easy one and was made after thorough consideration of various factors impacting the service's sustainability. We can confirm that SORBS was decommissioned on June 5, 2024, and the service no longer contains reputation data. Given the wide range of potential replacement solutions in the market, Proofpoint cannot make recommendations nor endorse any specific replacement product; this is dependent on an organization's needs."

Additionally one of our ips that was listed for years got delisted yesterday what seems to confirm that they did remove the reputation data. 

This is a good example of where having a status page or report for RBLs would be beneficial. You could see which RBLs are still working and effective.