After eight months of the Hell, I can finally announce: my /24 prefix is no longer on the Spamhaus DROP list. Oui!
It was a nightmare, how to say, the email delivery was impossible, the Cloud Providers were rejecting us, the Reputation was destroyed. I checked every week, every day sometimes, and today—finally—the lookup returns clean. The Relief is immense.
I used the Spamhaus query tool directly, the one with the DNS lookup format. Always returned 127.0.0.2. Then today I tried the Web interface for the first time and it shows « not listed ». Eight months of the Stress for nothing? I do not understand.
If anyone has the experience with this, kindly explain what I missed. I am the Fool or the Spamhaus is?