Sendible being blocked

Hi,

I’m on a current trial with Sendible, which manages social media and blog posts from within a single platform. It has a facility to allow the platform to log-in as a user to WordPress, post a blog post, and log-out.

To do this is needs access to the xmlrpc.php file. First error showed that I had access to that file disabled. I’ve now temporarily allowed access to the xmlrpc.php file, and that has allowed access to the blog – although the post has still failed to show, but I am guessing that is not a WP Cerber issue.

However, I don’t want to allow full access to the xmlrpc.php (obviously). Is there a bypass for WP Cerber and Sendible (or similar?). Sendible tell me whitelisting is not an option as they often change. I am also behind Cloudflare.

Thanks in advance.

Jonathan