UPN Suffix & IDFix Tool

New Contributor

Just wondering whether someone might be able to shed some light on results 
I'm getting when running IDfix prior to running AAD Connect in a test environment .

I've created a test domain ad.domainname.com  which should be non-routable. My test users UPN  is test@ad.domainname.com and as such
I'm expecting that idfix should query the users and give back a top level domain error however they all pass the query test .
Has anyone experienced anything like this before  ??? Does IDFix ignore a prefix in the upn suffix after the @   "ad" and then as the domainname.com does routable it's not an issue per se 
Thanks in advance

1 Reply
I might be wrong here but this might be down to DNS wilcard entry .... ??