New API method: Adding Non-Subscriber Emails to the Blacklist

We have created a new API method that allows the addition of email addresses not present on subscriber lists within a given organization to the blacklist.

To achieve this, we’ve implemented a POST method, modeled after the existing Add to suppression list.

To add an email address to the blacklist, you will need an API key and the email address you want to blacklist. Along with the email, you can also add domain, MD5, SHA256, phone number, and country dialing code in the blacklist.