Powershell - send to multiple recipients

I have been playing with PowerShell's Send-MailMessage and seems to work fine with one person to send to..  I have previously used Blat.exe with VBScript and it works fine.  I even tried to convert the Blat Script over to PowerShell..

I have also seen this, but does not seem to work either..
http://powershell.com/cs/blogs/tips/archive/2012/04/23/sending-email-to-multiple-recipients.aspx

I have read that you need to setup multiple recipients in the following manner:
$To = ("recipient1@company.com","recipient2@company.com")

If I convert the blat Script..

function blat-Mail
{
	param(
		[Parameter(Mandatory = $true)]
		[String[]]
		$To,
		[Parameter(Mandatory = $true)]
		$Subject, 
		[Parameter(Mandatory = $true)]
		$Body, 
		[Parameter(Mandatory = $true)]
		$Attachment, 
		$From = "CustomerCare@somecompany.com",
		$SmtpServer="RELAY.COMPANY.COM"
		)
			
	try {
		$strCommand = """D:\WORK\Scripts\Blat.exe"
		$strCommand = $strCommand + " -log $MailResult"
		$strCommand = $strCommand + " -f ""$from"""
		$strCommand = $strCommand + " -to ""$To"""
		$strCommand = $strCommand + " -server ""$smtpserver"""
		$strCommand = $strCommand + " -subject ""$subject"""
		$strCommand = $strCommand + " -body ""$body"""
		$strCommand = $strCommand + " -attach ""$Attachment"""
		$strCommand = $strCommand + " -q"""

 & $strCommand
##write-host $strCommand
		Write-Host "Email successfully sent." -ForegroundColor Green
	}
	catch {
		Write-Host "Email did not go through: $_" -ForegroundColor Red
	}
	}

$FullDate = Get-Date -format "yyyyMMdd000000"
$applog = "D:\WORK\Scripts\p1\AppLog\"
$mailresult = "$applog"+$FullDate+"_MailResult.txt"

blat-Mail "recipient1@company.com" "Daily Reports" "Attached are reports.  If there are any issues or concerns please contact your Customer Service Representative immediately." "D:\WORK\Scripts\p1\ReportDownload\Temp\20130713_foo.zip"

Results are (have tried to pass individual parameters and the whole thing as one parameter):

D:\WORK\ps\Reports\kt.ps1
Email did not go through: The term '"D:\WORK\Scripts\Blat.exe -log D:\WORK\Scripts\p1\AppLog\20130715000000_MailResult.txt -f "Cust
omerCare@somecompany.com" -to "recipient@fcompany.com" -server "RELAY.company.COM" -subject "Daily Reports" -body "Attached are
 reports.  If there are any issues or concerns please contact your Customer Service Representative immediately." -attach "D:\W
ORK\Scripts\p1\ReportDownload\Temp\20130713_foo.zip" -q"' is not recognized as the name of a cmdlet, function, script fil
e, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

Multiple recipients using Send-MailMessage:

I am reading in a "mapping" (settings) file as well.

Mapping Construct is:

COMPANY1,recipient1@somecompany.com;recipient2@somecompany.com
COMPANY2,recipient1@anothercompany.com;recipient2@anothercompany.com;recipient3@anothercompany.com;recipient4@anothercompany.com
COMPANY3,recipien1@yetanothercompany.com

And here is the code..

#7 Email the resulting Zip files to companies
## to do: work on event log
$ScriptDir = Split-Path $MyInvocation.MyCommand.Path
#$applog = "$ScriptDir\AppLog\"
$applog = "D:\WORK\Scripts\p1\AppLog\"
#$bkup = "$ScriptDir\ReportDownload\BkUp\"
$bkup = "D:\WORK\Scripts\p1\ReportDownload\BkUp\"
#$temp = "$ScriptDir\ReportDownload\Temp\"
$temp = "D:\WORK\Scripts\p1\ReportDownload\Temp\"
#$Settings = "$ScriptDir\Settings.Txt"
$Settings = "D:\WORK\Scripts\Settings.Txt"

#READ IN SETTINGS FROM TEXT FILE
$setting = Get-Content $Settings -encoding String
foreach ( $set in $setting )
{
If ($set.split("=")[0] -eq "AdminRecipient")
{
$AdminRecipient = $set.split("=")[1]
}
If ($set.split("=")[0] -eq "smtpserver")
{
$smtpserver = $set.split("=")[1]
}
}

$FullDate = Get-Date -format "yyyyMMdd000000"

$Mapping = "D:\WORK\Scripts\p1\Mapping.Txt"
##$Mapping = "D:\WORK\Scripts\p1\Testing.Txt"
$mailresult = "$applog"+$FullDate+"_MailResult.txt"

# $sw = [Diagnostics.Stopwatch]::StartNew()
% { $i = 1 }
$DateLogged = Get-Date -format u
"Run Start: $DateLogged" | Out-File -append -filepath $MailResult -encoding ASCII
#NEED TO CHECK FOR THE EXISTENCE OF THE Mapping file
If (Test-Path $Mapping) {
$results=''
$count = @(Get-Content $Mapping).Length
$lists = Get-Content $Mapping -encoding String
"Number of COMPANIES: " + $count | Out-File -append -filepath $MailResult -encoding ASCII
foreach ($list in $lists)
{
	$CompanyName = $list.split(",")[0]
	$Email = $list.split(",")[1]
    	#IF  THERE ARE MORE THAN ONE $EMAIL IN THE RECIPIENT LIST AND CONTAIS A ; IT NEEDS TO BE REPLACED
	$files = Get-ChildItem -Path $temp
	# verify if the list of source files is empty
	foreach ($file in $files)
	##if ($file -ne $null)
	{
	   $filename = $file.name
	   $fullname = $file.FullName
	   #Need to check to be sure that the file has not been previously sent
	   $ORGName = $filename.Substring(0, $filename.length-4)
	   $ORGName = $ORGName.Substring(9, $ORGName.length-9)
	   $result = Test-Path $BkUp$ORGName\$filename
	   if (!(Test-Path $BkUp$ORGName\$filename))
	   {
	   $count = $file.count
	   $e = $filename.contains($CompanyName)
	   if ($CompanyName -eq $ORGName)
	   ##if ($e -eq $true)
	   {
        If ($Email.contains(";"))
        {
            $Email=$Email -replace(';',""", """)
        }
        
        #ForEach ($y in $Email) {
	#if($results -ne '') { $results += "','" }
	#$tmpy = $y
	#$results += $tmpy
	#}
	$Email=$Email -replace '([^_]*).*','"$1'
	$Email=($Email)

	##$Email=$Email -replace (';',"','")

	Write-host ($Email)
	$DateLogged = Get-Date -format u
	Send-MailMessage -To ($Email) -From "CustomerCare@company.com" -subject "Daily Reports for $ORGName" -Body "Attached are Daily reports.  If there are any issues or concerns please contact your Customer Service Representative immediately." -Attachment $fullname -smtpServer "$smtpserver"
	#####"$i ,On: "+Get-Date+" ,e-mail was sent for: $ORGName ,To: $EMail ,Attachment: $fullname" | Out-File -append -filepath $MailResult -encoding ASCII
	"$i,On: $DateLogged,e-mail was sent for: $ORGName,To: $EMail,Attachment: $fullname" | Out-File -append -filepath $MailResult -encoding ASCII
	$i++
        }
	}
    }
	}
#$sw.Stop()
##$sw.Elapsed
"" | Out-File -append -filepath $MailResult -encoding ASCII
#"time taken: " + $sw.Elapsed | Out-File -append -filepath $MailResult -encoding ASCII
"Number of Companies: " + $count | Out-File -append -filepath $MailResult -encoding ASCII

#Measure-Command { Get-Process }
#$timetaken = Measure-Command { Get-Process }

#http://social.technet.microsoft.com/Forums/windowsserver/en-US/e172f039-ce88-4c9f-b19a-0dd6dc568fa0/writing-to-different-event-logs-and-sources-registered-to-a-single-event-log
$src = [System.Diagnostics.EventLog]::SourceExists("Daily_reports")
#IF THE EVENTLOG DOES NOT EXIST, WE NEED TO CREATE IT
	if (!$src)
	{
		New-EventLog -source "Daily_Reports" -logname "Application" > $null
	}
	write-eventlog -logname "Application" -source "Daily_Reports" -eventID 3001 -entrytype "Information" -message "Daily Reports have been sent and process is complete." -category 1 -rawdata 10,20
}

Here are the results..

PS C:\Documents and Settings\kent> D:\WORK\ps\Reports\7-b.ps1
"recipient1@anothercompany.com", "recipient2@anothercompany.com", "recipient3@anothercompany.com", "recipient4@anothercompany.com"
Send-MailMessage : The specified string is not in the form required for an e-mail address.
At D:\WORK\ps\Reports\7-b.ps1:160 char:25
+            Send-MailMessage <<<<  -To ($Email) -From "CustomerCare@company.com" -subject "Daily Reports for $ORGName" -Body
 "Attached are Daily reports.  If there are any issues or concerns please contact your Customer Service Representative immediately
." -Attachment $fullname -smtpServer "$smtpserver"
    + CategoryInfo          : InvalidType: (:) [Send-MailMessage], FormatException
    + FullyQualifiedErrorId : FormatException,Microsoft.PowerShell.Commands.SendMailMessage
 
Send-MailMessage : A recipient must be specified.
At D:\WORK\ps\Reports\7-b.ps1:160 char:25
+            Send-MailMessage <<<<  -To ($Email) -From "CustomerCare@company.com" -subject "Daily Reports for $ORGName" -Body
 "Attached are Daily reports.  If there are any issues or concerns please contact your Customer Service Representative immediately
." -Attachment $fullname -smtpServer "$smtpserver"
    + CategoryInfo          : InvalidOperation: (System.Net.Mail.SmtpClient:SmtpClient) [Send-MailMessage], InvalidOperationExceptio
   n
    + FullyQualifiedErrorId : InvalidOperationException,Microsoft.PowerShell.Commands.SendMailMessage

Thanks,

Kent