This powerful yet free tool lets you quickly check if your domain is listed on DNS-based blacklists (DNSBL or RBL) and other threat intelligence databases.

free.portend.ai/blacklistcheck

#CyberSecurity #ThreatIntelligence #DNSBL #RBL #EmailSecurity #ReputationMonitoring #PortendAI

This powerful yet free tool lets you quickly check if your domain is listed on DNS-based blacklists (DNSBL or RBL) and other threat intelligence databases.

learn more: free.portend.ai/blacklistcheck

#cyberSecurity #threatintelligence #DNSBL #RBL #emailsecurity #reputationmonitoring #PortendAI

#DNS #DNSBL #AdGuard #AdGuardHome

Oh, #DNSBL has legal issues. That means #DroneBL lies to everyone: "DroneBL is legal".

#DNSBL is not about anti-spam. Some of them is collection "bad" IP addresses with awkward reasons.

Good news. #DNSBL and using them services killed time of common users.

#Libera chat is harassing people using #DNSBL from #DroneBL. This is some type of #discrimination and #segregation. Even if you registered, configured client, known user, you can get no access to Libera, because somebody made decision "your IP address is bad" many years ago.

Original post on metalhead.club

If @spamhaus incorrectly marks a mail server as a spammer, then the process is clear.

But what do you do if the mail server is incorrectly marked as an "open resolver" and you therefore cannot query DNSBLs? 😂

😶‍🌫️

I just had this case with a customer.

#Mailserver #dnsbl #spamhaus #hosting […]

This powerful yet free tool lets you quickly check if your domain is listed on DNS-based blacklists (DNSBL or RBL) and other threat intelligence databases.

learn more: free.portend.ai/blacklistcheck

#cyberSecurity #threatintelligence #DNSBL #RBL #emailsecurity #reputationmonitoring #PortendAI

This powerful yet free tool lets you quickly check if your domain is listed on DNS-based blacklists (DNSBL or RBL) and other threat intelligence databases.

learn more: free.portend.ai/blacklistcheck

#cyberSecurity #threatintelligence #DNSBL #RBL #emailsecurity #reputationmonitoring #PortendAI

All mail servers suddenly listed on NixSpam (ix.dnsbl.manitu.net) Turns out the NixSpam DNSBL, operating under ix.dnsbl.manitu.net, stopped their services.

It seemed that all monitored mail servers were suddenly listed on the #DNSBL "ix.dnsbl.manitu.net" at the same time. The reason for the listings however is not spamming, but rather the decision to take this DNSBL out of service.
www.claudiokuenzler.com/blog/1475/al...

Blacklisted on spam.dnsbl.anonmails.de? Nope, this DNSBL is gone. Since November 12th 2024 all our mail servers were listed on spam.dnsbl.anonmails.de. It turns out that this DNSBL is dead.

Since yesterday evening, all our mail servers seem to have been blacklisted on the same #DNSBL.
But as it turns out, this DNSBL is dead and gone.
www.claudiokuenzler.com/blog/1453/bl...

Yet another DNSBL has gone offline (spamtrap.drbl.drand.net) If all your servers appear blacklisted on spamtrap.drbl.drand.net it is because this DNSBL is gone.

If your monitoring woke you up today with all your servers blacklisted on the same #DNSBL, you can go back to sleep. Or actually don't, because you need to adjust your #monitoring.
www.claudiokuenzler.com/blog/1402/ye...