Recursive / Mass AD Primary Email change / update

Recursive / Mass AD Primary Email change / update

for this to work you must have update the UPN in active directory for the target

users to the proper primary UPN.

Note: Regardless of the account EVERY account should have a valid defined UPN

or this will cause problems with many different products.

Source

clear

import-module activedirectory

$Tstamp = Get-Date -uFormat "%Y_%m_%d %H:%M:%S"

$SearchOUs = @("ou=faculty-staff,dc=school,dc=edu","ou=students,dc=school,dc=edu")

$NewSuffix = "bigschool.edu"

Foreach ($OU in $SearchOUs) {

$allusers = Get-ADuser -Filter * -SearchBase $OU

ForEach ($myuser in ($allusers | where { $_.userprincipalname -notlike ("*@" + $NewSuffix) } )) {

if (($myuser.UserPrincipalName -ne $null) -and ($myuser.UserPrincipalName.length -gt 0)){

$myuser | Set-ADUser -UserPrincipalName ( $myuser.UserPrincipalName.split("@")[0] + "@" + $NewSuffix ) -EmailAddress ( $myuser.UserPrincipalName.split("@")[0] + "@" + $NewSuffix )

($tstamp + " " + $Myuser.SamAccountName + " Assigned UPN (1) : " + ( $myuser.UserPrincipalName.split("@")[0] + "@" + $NewSuffix )) | Add-Content -path ($logpath + "UserMaintenance.log")

} else { #null upn, recreate and set

$myuser | Set-ADUser -UserPrincipalName ( $myuser.SamAccountName + "@" + $NewSuffix ) -emailaddress ( $myuser.SamAccountName + "@" + $NewSuffix )

($tstamp + " " + $Myuser.SamAccountName + " Assigned UPN (2) : " + ( $myuser.SamAccountName + "@" + $NewSuffix )) | Add-Content -path ($logpath + "UserMaintenance.log")

}

}

}