Hi, I'm trying with the use of Get-Mailbox, Get-DistributionList and Get-MailContact to set the same customattribuet1 for all my organization's recipients. As i'm new in Powershell script and in general in programming, i'm kindly asking for some help, as i think the script could be optimized to run in a more smart way. I would like to set the 'customattribute1' a certain value, identical to all recipients, and it should only be applied to recipient that don't have it, with some kind of trigger on the Extention Attribute 1. Therefore, i'm wondering how i could interrogate all recipient in a OU, then apply the custom attribute to the ones that doesn't have it yet without taking too much power from my server? Some help would be very appreciated. Thank you in advane

Something like:get-mailbox -organizationalunit <OU name> -filter {customattribute1 -eq ""} | set-mailbox -customattribute1 = "<value>"

Hi mjolinor, Thank you for your answer. The filter will help the script in only processing mailbox where the CA1 is not set. I also want to process the same way all recipients (mailbox, DistributionList and MailContact). Do i have to put that command three times with the correct Get-string command? or is it possible to process every recipient in one piped command?

You can get them all in one command using get-recipient, but there is not a corresponding set-recipient command you can use to do the update, so I think you're stick with 3 commands. If this means entering 3 commands repeatedly to process multiple OUs I can show you how to do that without having to type in the commands over and over again for each OU.

Hi, Try this script get-Recipient -filter{CustomAttribute1 -eq $null }| foreach{ if($_.RecipientType -eq "UserMailbox") { Set-Mailbox $_.Identity -CustomAttribute1 "CS1" } if($_.RecipientType -eq "MailUniversalDistributionGroup") { Set-DistributionGroup $_.Identity -CustomAttribute1 "CS1" } if($_.RecipientType -eq "MailContact") { Set-MailContact $_.Identity -CustomAttribute1 "CS1" } } Save this script in a file with extension .ps1 e.g. "MyScript.ps1"and put it in "Scripts directory of Exchange Installation Folder which is normally "C:\Program Files\Microsoft\Exchange Server\Scripts". Also replace "CS1" with whatever u want to put there. Now just type the name of .ps1 file in EMS like "MyScript.ps1" and press enter. Regards, Laeeq Qazi|Team Lead(Exchange + Sharepoint + BES + DynamicsCRM) www.HostingController.com

in facts, my script is: Get-Mailbox -OrganizationalUnit 'hmcBO.corp -resultsize unlimited | set-mailbox -customattribute1 'mail.hmc.lu' Get-DistributionList -OrganizationalUnit 'hmcBO.corp -resultsize unlimited | set-Distributionlist -customattribute1 'mail.hmc.lu' Get-MailContact -OrganizationalUnit 'hmcBO.corp -resultsize unlimited | set-MailContact-customattribute1 'mail.hmc.lu' Do you think this script may be better written? I've also tried your suggestion with -filter string, but Active Directory don't seems to be able to process the filter string. Any idea?

Not sure why it doesn't like that filter. Where-object filtering seems to work OK.Get-Mailbox -OrganizationalUnit 'hmcBO.corp -resultsize unlimited |? {$_.customattribute1 -eq ""} | set-mailbox -customattribute1 'mail.hmc.lu'Get-DistributionList -OrganizationalUnit 'hmcBO.corp -resultsize unlimited |? {$_.customattribute1 -eq ""} | set-Distributionlist -customattribute1 'mail.hmc.lu'Get-MailContact -OrganizationalUnit 'hmcBO.corp -resultsize unlimited |? {$_.customattribute1 -eq ""} | set-MailContact-customattribute1 'mail.hmc.lu'

Looks like you're missing the closing quotes on your OU names, also.Get-Mailbox -OrganizationalUnit 'hmcBO.corp' -resultsize unlimited |? {$_.customattribute1 -eq ""} | set-mailbox -customattribute1 'mail.hmc.lu'Get-DistributionList -OrganizationalUnit 'hmcBO.corp' -resultsize unlimited |? {$_.customattribute1 -eq ""} | set-Distributionlist -customattribute1 'mail.hmc.lu'Get-MailContact -OrganizationalUnit 'hmcBO.corp' -resultsize unlimited |? {$_.customattribute1 -eq ""} | set-MailContact-customattribute1 'mail.hmc.lu'

in facts, my script is: Get-Mailbox -OrganizationalUnit 'hmcBO.corp -resultsize unlimited | set-mailbox -customattribute1 'mail.hmc.lu' Get-DistributionList -OrganizationalUnit 'hmcBO.corp -resultsize unlimited | set-Distributionlist -customattribute1 'mail.hmc.lu' Get-MailContact -OrganizationalUnit 'hmcBO.corp -resultsize unlimited | set-MailContact-customattribute1 'mail.hmc.lu' Do you think this script may be better written? I've also tried your suggestion with -filter string, but Active Directory don't seems to be able to process the filter string. Any idea? Hi, In my script u can add -OrganizationalUnit and -ResultSize paramerts as they are also supported with get-recipient command Also the filter {$_.customattribute1 -eq ""} is wrong, instead use {$_.customattribute1 -eq $null} Hope this helps. Regards,Laeeq Qazi|Team Lead(Exchange + Sharepoint + BES + DynamicsCRM) www.HostingController.com

Thank you very much for your help. I'll try tomorrow at work.