Bulk update contacts in Exchange 2007?

Question

Hello,
Our Italian division has changed their domain name, so we need to update all their smtp addresses with the new domain name, is their an easier method to do this than a manual update?
Sorry I'm not an Exchange admin.
Thanks

Answer 1

Point 1:
I understand that you have mail contacts in your Exchange 2007 database for the Italian division of your company and you need to change the STMP address of these contacts.
Point 2:
If that is the case, I think you will also need to change the "ExternalEmailAddress" attribute of those contacts if you want to continue to send email to them.
If my understanding is correct, I believe the following script may work for you:
Script starts after next row of pound signs
$contacts = get-mailcontact | where { $_.PrimarySMTPAddress -match "olddomain.com" }
foreach($contact in $contacts)
$newsmtp = $contacts.primarysmtpaddress.tostring()
$newsmtp = $newsmtp -replace "olddomain.com","newdomain.net"
get-mailcontact $contact | set-mailcontact -PrimarySMTPAddress $newsmtp -externalemailaddress $newsmtp
Script ends with bracket above pound signs
I tested it in my lab (yes, on Exchange 2007 SP3) with a user named "Thomas Jefferson" and obtaining the following results. Between the two "Get-MailContact" commands, I run the script.
[PS] C:\Scripts>get-mailcontact | where { $_.PrimarySMTPAddress -match "olddomain.com" } | fl name,primarysmtpaddress,externalemailaddress
Name                 : Thomas Jefferson
PrimarySmtpAddress   :
[email protected]
ExternalEmailAddress : SMTP:[email protected]
[PS] C:\Scripts>.\newsmtp.ps1
[PS] C:\Scripts>
[PS] C:\Scripts>get-mailcontact | where { $_.PrimarySMTPAddress -match "newdomain.net" } | fl name,primarysmtpaddress,externalemailaddress
Name                 : Thomas Jefferson
PrimarySmtpAddress   :
[email protected]
ExternalEmailAddress : SMTP:[email protected]
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