Remove redundant SMTP addresses from Mailboxes

Question

Hi,
I have to bulk edit some mailboxes which should have mydomain.com and mydomain.mail.onmicrosoft.com (and any other verified domains)
We have some mailboxes that have [email protected] and
[email protected] and
[email protected]. this is the same format for 2 other domains ie first.last at xyz.com
I thought if I did the following it would do the trick but its not working, please can someone help me.
foreach($user in $list)
$a = "*@aaaa.co.uk"
$b = "*@bbbb.co.uk"
$c = *@cccc.com
　 $user.EmailAddresses |
　　　 ?{$_.AddressString -like $a} | %{
　　　　　 Set-Mailbox $i -EmailAddresses @{remove=$_}

Answer 1

Hi Ed,
Unfortunately that wont work as this would replace all addresses, even those that we don't want to manipulate.
I got it working in the end.. if anyone gets this again, then please following something like below:
# This creaetes a simple list of users.
$list=@()
$list = @()
$list += (get-mailbox 0365Test2)
$list += (get-mailbox 0365Test3)
$list += (get-mailbox 0365Test4)
$list += (get-mailbox 0365Test5)
$list += (get-mailbox 0365Test6)
$list += (get-mailbox 0365Test7)
$list += (get-mailbox 0365Test8)
$list += (get-mailbox 0365Test9)
$list += (get-mailbox 0365Test10)
# REMOVE DOMAIN1
foreach($dom1 in $list)
　 $dom1.EmailAddresses |
　　　 ?{$_.AddressString -like '*@domain1.sch.uk'} | %{
　　　　　 Set-Mailbox $dom1 -EmailAddresses @{remove=$_}
# REMOVE DOMAIN2
foreach($dom2 in $list)
　 $dom2.EmailAddresses |
　　　 ?{$_.AddressString -like '*@domain2.org.uk'} | %{
　　　　　 Set-Mailbox $dom2 -EmailAddresses @{remove=$_}