> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.metalocator.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Lead Blocklist Configuration

The Lead Blocklist feature allows for the specification of criterion to be blocked from the Lead system. The options are:

* Sender IP Address _e.g. 129.89.2.1_
* Sender IP [CIDR Range](https://www.google.com/search?q=cidr+range+examples&rlz=1C5CHFA_enUS848US848&oq=cidr+range+exa&aqs=chrome.1.69i57j0i512j0i22i30l4j0i390l3.4117j0j7&sourceid=chrome&ie=UTF-8) _e.g. 129.89.2.0/24_
* Sender Email Address e.g. [spammer@baddomain.com](mailto:spammer@baddomain.com)
* Sender Domain _e.g. baddomain.com_
* Recipient Domain _e.g. nosendemail.com_

Access the tool as shown here:  
​

[![](https://storage.crisp.chat/users/helpdesk/website/-/c/1/2/a/c12a1086f94a7000/98a6f5b3-9575-4f74-b64b-985e08_jbtv57.png)](https://downloads.intercomcdn.com/i/o/103019885/2c8e2d9192a63834b8d6957c/image.png?expires=1794512700&signature=bfcecc26d764abc60f273ef263f600bb781cc2ee4368fa4146beaa049394d13b&req=dSAkFsh3lYlaFb4f3HP0gNTFqN9hlJAX%2FZv2v9TkPuLEHOTz3Uy3a69x7SYj%0AI9F7uYRV5wqHZ0D4ag%3D%3D%0A)

Create a new rule with the "New" button.  
​

[![](https://storage.crisp.chat/users/helpdesk/website/-/6/b/5/1/6b5156e1ef7e0800/9786dbb6-56f0-46bd-9027-add86c_16kmtzm.png)](https://downloads.intercomcdn.com/i/o/103020056/96467444051119f5591f22a3/image.png?expires=1794512700&signature=1e7a04903f5ba105bc16357b5ad96d729cc0444e2c29cddc0fc79278c862dc52&req=dSAkFst%2BnYRZFb4f3HP0gB3nwyL2DZMCzFRW6M5CcPguPAQBCro1vB4U5Xvq%0AsXRLBofyFel0FoJkUg%3D%3D%0A)

Select the Block Type and fill in the fields as required. The rule is the specification to be matched for the type of block. Save the Blocklist when complete. The block can be designated here as Published (active) or Unpublished (inactive). These can be changed once the block has been saved.  
​

[![](https://storage.crisp.chat/users/helpdesk/website/-/7/5/e/f/75efd1c821f8d400/00d9b8bc-7a54-4ced-b2e5-ffbd21_fxi9od.png)](https://downloads.intercomcdn.com/i/o/103020955/bf4f4bf86a1907457bbdad5e/image.png?expires=1794512700&signature=99bd3d7faadbdbe367fecfd871e3878ccad0703db6ae16ac266cbb22e3b39a01&req=dSAkFst%2BlIRaFb4f3HP0gLoXIevGRL%2BbDCOBUOnmo8iSKQwTEvvABalgoHnK%0AdcizNurubhYghBrafw%3D%3D%0A)

After a  Blocklist has been created, there will be options to Publish, Unpublish, Delete or Edit.

[![](https://storage.crisp.chat/users/helpdesk/website/-/2/b/3/0/2b30a9bc14bc5000/c47bfaa4-3df0-4d2b-a6f7-d67d42_14wddfo.png)](https://downloads.intercomcdn.com/i/o/103021800/0508f127f6fb3b2513518593/image.png?expires=1794512700&signature=d15a2c13173bae28214c7e161b5d730dc44f8c6ed7571ab2b93e469cda908549&req=dSAkFst%2FlYFfFb4f3HP0gKqk97%2FjJIsx4iATsbZwcR7%2BHroZVBZmAN5975jL%0AZJO2tSZqis0o85x3zg%3D%3D%0A)