Remove X500 address from the TXT file


I need to remove just one X500 address from the users txt files , I had tries that script below did not work any help is appreciated

Import-CSV d:\test_input.csv | foreach{Set-ADuser -identity $.user -remove @{proxyAddresses = "x500:/o=ExchangeLabs/ou=Exchange Administrative Group /cn=Recipients/cn=@{user=$($.user); legacy=$($_.legacy).legacy"}}

When you say it “doesn’t work,” can you be more specific? Any errors? Can you manually use PowerShell to remove the item from one user - to make sure you have the syntax correct?

It don’t give any error but also do not remove the X500 address , yes it work for single user .