Powershell To Locate, Create, Delete, and Edit Exchange Contacts

Question

Hello,
I have been tasked with creating about 160 Exchange contacts. I'm finding that some of the email address listed are secondary email addresses for other users. I am in need of assistance for the following.
- Determine which contacts in my list have already been created.
- Determine which addresses on my list are already in Exchange as secondary SMTP addresses for different contacts/mailboxes.
- For the addresses that are not in Exchange I will need to mass create them.
- For the existing contacts that have addresses in my list, I will need to delete the secondary SMTP that matches ones in my list and create a new contact for the SMTP.
Really not sure how to work this one. Any assistance would be appreciated.
Thanks in advance,

Answer 1

Hi Green-Tech,
Please refer to this script to start, which can delete secondary SMTP addresses based on the string pattern "*@domain.local":
Get-MailContact -OrganizationalUnit "domain.local/OU" -Filter {EmailAddresses -like "*@domain.local"} -ResultSize unlimited -IgnoreDefaultScope | foreach {
$contact = $_
$email = $contact.emailaddresses
$email | foreach {
if ($_.smtpaddress -like "*@domain.local") {
$address = $_.smtpaddress
write-host "Removing address $address from Contact $contact.name
Set-Mailcontact -Identity $contact.identity -EmailAddresses @{Remove=$address}
$contact | set-mailcontact -emailaddresspolicyenabled $false} }}
Refer to:
Powershell script to delete secondary SMTP addresses of Exchange 2010 Mail Contacts
I also recommend you can post your current script and specific issue for a better response.
If there is anything else regarding this issue, please feel free to post back.
Best Regards,
Anna Wang
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