May 11, 2009

How to find the user / entity an email address is associated with in Exchange 2003

  • Open the Acive Directory Users and Computers Management Console
  • Right Click on the domain > Select Find
  • Select Custom Search in the Find field
  • Select the Advanced tab
  • To find the entity with the email address spamtrap@danlance.co.uk for example, enter the following in the LDAP query field: (proxyAddresses=smtp:user@somain.com)
  • This will list the entity containing the email address entered.

    Wild cards can be entered within the email address (*) to return multiple matches.
    If you want to view all the email addresses within the results list, select View -> Choose Columns... and select Proxy Address - doing this in assoication with the query (proxyAddresses=smtp:*@somain.com) will give you a list of all entities within the organisation that have an email address, together with all the email addresses they have.