Get AD object when you know the email address of the object only.

Create a notepad file and copy the email address to a file C:\temp\list1.txt

$list1 = Get-Content C:\temp\list1.txt

foreach($i in $list1){
Get-ADObject -Filter {(mail -like $i)} |
Select-Object name, objectclass,DistinguishedName |
Export-Csv c:\temp\ADObjectList.csv -Append -NoTypeInformation
}

Private contacts on IBM Notes 9

When you have delegated access of your Contacts to somebody, that person can read all your contacts.

Now you can hide your personal contacts by clicking this option “Mark Private” on IBM Notes 9.