Thread:Project:Support desk/Some edits not saving, is there some anti-spam feature preventing this?

I have setup a wiki for my business to use as a knowledgebase, and at the moment am largely working on pages that have large lists of links. However I'm finding that many of my edits are failing to save, but when I try to add only one or two links to a list it works fine.

Do I need to disable some sort of anti-spam protection, or change some other setting here?