Generally speaking, Outpost does not host Ghost websites. The vast majority of Outpost clients use Ghost(Pro) (that's an affiliate link, fyi) to host their sites, but we can also work with sites hosted elsewhere or that are self-hosted.
For Enterprise clients that have very special needs, including a network of newsletters, Outpost can host these sites. If this sounds like what you need, please write us at info@outpost.pub.
Go to the main documentation page. Or contact support@outpost.pub if you have questions.