Something like this: $obj = [adsi]'LDAP://cn=Michael B. Smith,cn=users,dc=essential,dc=local' $proxy = $obj.proxyaddresses |? {$_ -match "`@exchange\.domain\.com$" } $obj.PutEx(2, 'proxyAddresses', (,"$proxy")) $obj.SetInfo() $obj = $null Should remove the bad entry. You'll just need to use S.DS to search for publicfolder objects that have a proxyAddresses attribute. Regards, Michael B. Smith MCITP:EM/MCSE/Exchange MVP http://TheEssentialExchange.com From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Frank Sent: Tuesday, June 17, 2008 1:09 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Public Folder primary SMTP addresses I'm asking for help with the method of changing the email addresses. The folders to be changed are all beneath one PubFolder tree-node. --- On Tue, 6/17/08, Michael B. Smith <michael@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: From: Michael B. Smith <michael@xxxxxxxxxxxxxxxxxxxxxxxx> Subject: [ExchangeList] Re: Public Folder primary SMTP addresses To: exchangelist@xxxxxxxxxxxxx Date: Tuesday, June 17, 2008, 12:31 PM What exactly are you asking for? How do you choose which public folders you are going to change? Regards, Michael B. Smith MCITP:EM/MCSE/Exchange MVP http://TheEssentialExchange.com From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Frank Sent: Tuesday, June 17, 2008 10:51 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Public Folder primary SMTP addresses I need to change the Primary SMTP addresses of a large number (but not all) of our public folders from "@exchange.domain.com" to "@domain.com". A lot of these folders email addresses do not have a match between the user part of the email address and the "MailNickName", so ADMODIFY is not a clear option. I've been trying CSVDE and LDIFDE as well as PowerShell. Still...no luck...well...no GOOD luck. Any suggestions would be greatly appreciated. Frank