Merge Email Address Only Group With Matching Names And Emails Group

Question

Here's the situation:
I have a large list of conacts that are only email addresses and are in a group called Emails Only.  I decided to upload the email address to LinkedIn and connect with the people that were in my email list to obtain their full name if they were on LinkedIn. Then, after I connected with a bunch of people, I exported my whole LinkedIn contacts back into my address book in a group I made called LinkedIn.
I then tried to merge my contacts. For some reason the LinkedIn group won't merge with the Email Only group.  Shouldn't my address book realize there are multiple contacts with the same email address? Is it an issue that the Email Only list just has emails and no names?
Any help would be much appreciated!

Answer 1

Hi Navgup,
Please refer to the script below, to query users in other domain by specifying the parameter "-Server" in the cmdlet "get-aduser", and also note I haven't tested the script below:
import-module activedirectory
get-adgroupmember "group"|foreach{
$email=(get-aduser $_.samaccountname -properties *).EmailAddress#get the user email
Get-ADUser -filter {EmailAddress -eq $email} -properties * -server DomainB.company.com|select samaccountname, memberof}#filter user name and group with the email in other domain
To get users across domain, please also refer this blog:
Adding/removing members from another forest or domain to groups in Active Directory:
http://blogs.msdn.com/b/adpowershell/archive/2010/01/20/adding-removing-members-from-another-forest-or-domain-to-groups-in-active-directory.aspx?Redirected=true
I hope this helps.