Search for an email address in Exchange / Active Directory

Open Active Directory Users and Computers. Right click on the domain and choose find. Change to custom search in the find field. Click on the advanced tab to enter a LDAP query.

LDAP query to find the email address daniel@domain.com:
proxyAddresses=smtp:daniel@domain.com

LDAP query to find all objects that uses the email domain domain.com:
proxyAddresses=smtp:*@domain.com

Restore a deleted Active Directory object with PowerShell

This requires that you have enabled the enable Active Directory Recycle Bin before you deleted the object.

Run Windows PowerShell as Administrator.

Start by loading the Active Directory module for Windows PowerShell:
Import-Module ActiveDirectory

List all deleted users (for some reason computer objects also are included when you use objectclass -eq “user):
get-adobject -filter ‘objectclass -eq “user” -AND IsDeleted -eq $True’ -IncludeDeletedObjects -properties IsDeleted,LastKnownParent | Format-List Name,IsDeleted,LastKnownParent,DistinguishedName

List all deleted groups:
get-adobject -filter ‘objectclass -eq “group” -AND IsDeleted -eq $True’ -IncludeDeletedObjects -properties IsDeleted,LastKnownParent | Format-List Name,IsDeleted,LastKnownParent,DistinguishedName

List all deleted computers:
get-adobject -filter ‘objectclass -eq “group” -AND IsDeleted -eq $True’ -IncludeDeletedObjects -properties IsDeleted,LastKnownParent | Format-List Name,IsDeleted,LastKnownParent,DistinguishedName

List all deleted objects:
get-adobject -filter ‘IsDeleted -eq $True’ -IncludeDeletedObjects -properties IsDeleted,LastKnownParent | Format-List Name,IsDeleted,LastKnownParent,DistinguishedName

If you want the output in a text file:
1. Create a script file named list_deleted_users.ps1 and save it to C:\Script\.
2. Use the follwong code in the script:
Import-Module ActiveDirectory
get-adobject -filter ‘objectclass -eq “user” -AND IsDeleted -eq $True’ -IncludeDeletedObjects -properties IsDeleted,LastKnownParent | Format-List Name,IsDeleted,LastKnownParent,DistinguishedName
3. Save the script file.
4. In PowerShell navigate to C:\Script and run the following command:
.\list_deleted_users.ps1 > output.txt
5. You will now have the output from the script in C:\Script\output.txt.

To restore an object named Daniel Svensson:
get-adobject -filter ‘name -like “Daniel Svensson*”‘ -IncludeDeletedObjects | Restore-ADObject

To test the restore you can use –whatif.
get-adobject -filter ‘name -like “Daniel Svensson*”‘ -IncludeDeletedObjects | Restore-ADObject –whatif