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SORBS ZOMBIE

What you see when your domain has this problem
Added to SORBS ZOMBIE Details area Ignore
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More Information About Sorbs Zombie

The SORBS (Spam and Open Relay Blocking System), owned and operated by Proofpoint, Inc., provides free access to its DNS-based Block List (DNSBL) to effectively block email from more than 12 million host servers known to disseminate spam, phishing attacks, and other forms of malicious email. The list typically includes email servers suspected of sending or relaying spam, servers that have been hacked and hijacked, and those with Trojan infestations. In an attempt to provide preemptive protection, SORBS also lists servers with dynamically allocated IP addresses.

Sorbs Zombie Reports Shared Hosts

Host-reputation Blacklists will list either single IP Addresses that host multiple domains or entire ranges of IP Addresses from DNS &/or Email Hosts that host email for their registered domains on shared email servers. When one company sends Spam Mail or Unsolicited Bulk Email (UBE), the entire ranges can be reported as blacklisted.

Sorbs Zombie Reports Sources Of Spam

Spam-based Blacklists are those that will list either single IP Addresses or entire ranges that have actually received Spam, i.e. Unsolicited Bulk Email (UBE) in their Spamtraps from an IP-Address. This could be a result of a compromised email account, an Open Relay, or simply sending mass emails / marketing and not following best practices according to the "CAN-SPAM Act of 2003" (ref: https://en.wikipedia.org/wiki/CAN-SPAM_Act_of_2003)

Sorbs Zombie Requires A Manual Delisting Request

This blacklist does support a manual request to remove or delist your IP Address from their database. Please note that removal requests that are submitted without addressing the core problem will likely result in your IP Address or Domain being relisted in that database, which can cause subsequent problems and extended listing periods without release.

More information about SORBS ZOMBIE can be found at their website: http://www.sorbs.net/lookup.shtml

DMARC is the key to improving Email Deliverability!

Email is the key to your customer communication strategy. But, what is your email reputation?

Setting up and managing your DMARC configuration is the key to getting insight into your email delivery. MxToolbox is the key to understanding DMARC.

MxToolbox Delivery Center gives you:

  • Who is sending phishing email purporting to be from your domain
  • What is the reputation of your domains and delegated IPs
  • Where other senders are and What their reputations are
  • How your SPF, DKIM and DMARC setup is performing
  • What on-going maintenance you need to maintain and improve your email deliverability

  Learn More

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