Domains that failed to resolve on https://gist.githubusercontent.com/chrisquinnr/8732c348b07eb710c10998b147fbd57b/raw/3808ef4354ac3477c32e9658acefca901de4920c/hosts

apps.skype.com
so.2mdn.net
cds26.ams9.msecn.net
msecn.net