Get-ADUser with distinguishedname?

Dear /r/powershell

Is is possible to use Get-ADUser to ‘extract’ the distinguishedname attribute from a certain user?

Background: I need to get the distinguishedname’s from all users and add them to the ‘MSExchDelegateListLink’ Attribute.. Unfortunately I have not been able to get the distinguishedname in the first place..

Exporting it to a .csv to use them later would also be a possibility.

Thanks in advance!