If the following message "Sorry, you have been blocked" presents when attempting to create a campaign with email HTML, it is most likely due to the following:
- This Cloudflare error will occur when progressing to page 3 in campaign creation after attaching the client's HTML.
- This is usually caused by HTML including a script tag: <script></script>
- HTML that includes a <script> tag will always be blocked by Cloudflare as it is seen as potentially malicious.
- Removing the <script> HTML will resolve the block.
