How to add proxyaddresses to multiple Active Directory users with Powershell
I did a cutover to a new domain and had to merge proxy addresses to existing users. Ill do a better write up later but here is the script I used(Thanks Google). It just needs two columns in the .csv. samaccountname and proxyaddresses. The proxyaddresses must be in smtp:user@domain.tld and the samaccountname is just the windows sam name. It will post any errors in powershell as it rolls. Script: Import-module ActiveDirectory $Imported_csv = Import-Csv -Path "PATHTOCSV\.csv" foreach ($user in $Imported_csv) { $User.samaccountname $User.proxyaddresses Set-ADUser -Identity $User.samaccountname -Add @{proxyAddresses= $User.proxyaddresses} } $total = ($Imported_csv).count $total write-host "AD accounts added with proxy addresses..."