Let's say you have a second blog and you want to share the same blog post on your second blog automatically. After adding the blog, what you share in your blog will be auto-sync to the second blog. And you can add as many blogs as you want. To do this please follow the steps below:
If you are using a sharing hosting, you need to use HTTPS because XML-RPC is protocol very commonly exploited/abused. Due to that reason, HTTP outbound requests are blocked to XMLRPC.