Thanks, that will creat a distribution group, not an addresslist, but I have modified your command to: New-AddressList -Name "AddresslistName" -RecipientFilter { ((RecipientType -eq 'UserMailbox') -or (RecipientType -eq 'MailContact') -or (RecipientType -eq 'Contact')) -and (Description -eq 'Text in Discription field') } And it seems to work :-) Many thanks.

We would like to create a new address list in Exchange 2010, the address list should be based on the description field. How can I manage this ?

Use the following in EMS New-DynamicDistributionGroup -Name “GroupNameHere” -OrganizationalUnit “domain.org/OU-Name” -RecipientFilter { ((RecipientType -eq ‘UserMailbox’) -or (RecipientType -eq ‘MailContact’) -or (RecipientType -eq ‘Contact)) -and (Description -eq ‘Text in Discription field’) } MCSE | MCITP - Server 2008, Exchange 2007, Exchange 2010