What version are you running?
1.7.11
What's the URL of the page this enhancement relates to, if any?
admin/settings/authentication/
Describe the enhancement and the motivation for it.
Larger organizations may have multiple domains with users belonging to each. If the domain names are added with a delimiter, they can be split and users authenticated against each until success (or failure). This is a similarly supported feature in the Jenkins AD add-in.
What operating system are you using? What browser?
Please provide any additional information below.