Sending email with Powershell from csv list - arrays

Question

I have a *.csv file with a few columns and I want to use the UsersTo and UsersCc list of users to send messages.
The problem is with $CcAddress as I have multiple email address once I format them I get the following :
error:
Send-MailMessage : An invalid character was found in the mail header: ','.
At C:\Discovery Scan Process\RSU notifications\Notifications.ps1:43 char:2
Send-MailMessage -Encoding UTF32 -to $ToAddress -Cc $CcAddress -from $FromAddre ...
+ CategoryInfo : InvalidType: (:) [Send-MailMessage], FormatException
+ FullyQualifiedErrorId : FormatException,Microsoft.PowerShell.Commands.SendMailMessage
CSV looks like this:
UsersTo,UsersCc,Domain
unknowTest.Test#test.com,"testOpen#new.com,Pvo.ovi#new.com",test.test
unknowNew.test#test.com,"testOpen#new.com,testOpen#new.com",new.test
unknowprod.mx#test.com,"testOpen#new.com,Evo.x#new.com",prod.test
unknowX.SS#test.com,"testOpen#new.com,Spekor1.#new.com",uat.test
Code:
$notificaitonList = import-csv .\'listOfUsers - Copy.csv'
$domains = 'test.test','prod.test'
foreach ($domain in $domains){
$FromAddress = "some#address"
$ToAddress = ($notificaitonList | Where-Object {$_.domain -like $domain}).UsersTo | foreach {"`"$_`""}
$Ccstr = (($notificaitonList | Where-Object {$_.domain -like "$domain"}).UsersCc).split(",")
$Ccstr = $Ccstr | foreach {"`"$_`""}
[string[]]$CcAddress= $Ccstr.Split(",") | foreach {"`"$_`""}
[string] $MessageSubject = "MessageSubject "
[string] $emailbody = "emailbody"
$SendingServer = "server"
Send-MailMessage -Encoding UTF32 -to $ToAddress -Cc $CcAddress -from $FromAddress -subject $MessageSubject -smtpServer $SendingServer -body $emailbody
}

Answer 1

You can simply split at the comma and let powershell handle the rest. Here is my test that confirmed this.
$tempfile = New-TemporaryFile
#'
UsersTo,UsersCc,Domain
some#email.com,"second#email.com,random#otherdomain.com",test.test
'# | Out-File $tempfile -Encoding utf8
Import-CSV $tempfile | foreach {
$mailparams = #{
SMTPServer = 'myexchangeserver'
From = "noreply#email.com"
To = $_.usersto
CC = $_.userscc -split ','
Subject = 'test email'
Body = 'test body'
}
Send-MailMessage #mailparams
}