> For the complete documentation index, see [llms.txt](https://docs.emaillabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaillabs.io/en/email/email-api/blacklist-report/domains-blacklist/adding-a-new-domain.md).

# Adding a New Domain

<figure><img src="/files/sFabBpabC322xXXJmDjp" alt=""><figcaption></figcaption></figure>

To add a new domain to the blacklist, use the ‘Add’ option located on the right side and complete the following fields:

* **Select SMTP:** Choose the SMTP subaccount where the domain will be blocked.
* **Domain:** Enter the domain name you wish to block.

<figure><img src="/files/WTEEGTuaOggo4aLaubJX" alt=""><figcaption></figcaption></figure>

After completing the fields, click the ‘Save’ button to add the domain to the blacklist.