bulk adding smtp address to ad users that don't have the address

The intermediate files are handy, save them and set aside. If you screw up, you'll know what users to go back and fix!

get-aduser -filter * -SearchBase "OU=WHATOU,DC=DOMAIN,DC=DOMAIN" -properties * | where {$_.distinguishedname -notlike "*OUyouDONTwant*" -and $_.distinguishedname -notlike "*UnwantedOU*"} | Where {$_.emailaddress}| where {$_.emailaddress -notlike "*UnwantedSuffix*"} |Where {$_.proxyAddresses} | Where {-not($_.proxyAddresses  -like "*NewProxyAddress*")} | select-object samaccountname | Export-Csv c:\scripts\NO_NewSuffix.csv -NoTypeInformation


get-content c:\scripts\NO_NewSuffix.csv | select-string -pattern 'SamAccountName' -notmatch | % {$_ -replace '"', ""} | out-file c:\scripts\NO_NewSuffix_C.txt


$noNewSuffix = Get-Content c:\scripts\NO_NewSuffix_C.txt


foreach($user in $noNewSuffix)


$client = get-aduser "$user" -properties *

$emailP = $client.emailaddress

write-host "Email: $emailP" ##output to confirm whats happening

$newproxy = $emailP -replace '@OLD.SUFFIX','@NEW.SUFFIX'

write-host "NewProxy: $newproxy" 

##output to confirm whats happening


write-host "Appended with smtp: $NP" ##output to confirm whats happening

##runfirst without set once confirmed uncomment set ## set-aduser -identity "$user" -add @{proxyaddresses="$NP"}


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