Email Subject showing Encoding - powershell

Question

I am using send-mail message to send email to our Support System.
But when it send email it shows the subject line like this screen!
=?us-ascii?Q?R899076:Aman:System Summary ?=
In Subject I am using the variable:
$vUserName = (Get-Item env:\username).Value
$vComputerName = (Get-Item env:\Computername).Value
$subject = "$vComputerName : $vUserName : System Summary"
and then
send-MailMessage -SmtpServer Smtp-local -To $to -From $from -Subject $subject -Body $body -BodyAsHtml -Priority High
But when I recieve this email in Outlook it looks fine any Idea?
Actually this a approx 150 lines script and the body of email and smtp server are already specified in the server.
yes I tried the $subject = "$env:ComputerName : $env:UserName : System Summary" variable and the result is same.
yes I have tried the - encoding option and it gives an error
Send-MailMessage : Cannot bind parameter 'Encoding'. Cannot convert the "utf8" value of type "Syste
m.String" to type "System.Text.Encoding".
At D:\PowerShell\MyScripts\SystemInfo\SysInfo-V6-test[notfinal].ps1:151 char:84
+ send-MailMessage -SmtpServer $smtp -To $to -From $from -Subject $subject -Encoding <<<< utf8 -B
ody $body -Attachments "$filepath\$name.html" -BodyAsHtml -Priority High
+ CategoryInfo : InvalidArgument: (:) [Send-MailMessage], ParameterBindingException
+ FullyQualifiedErrorId : CannotConvertArgumentNoMessage,Microsoft.PowerShell.Commands.SendMai
lMessage
Any clue?

Answer 1

You could write a custom function to send using .net instead of using the Send-MailMessage cmdlet. It's a lot clunkier, but gets round the problem.
Something like this:
Function SendEmail ($emailFrom, $emailTo, $subject, $body, $attachment) {
# Create from/to addresses
$from = New-Object System.Net.Mail.MailAddress $emailFrom
$to = New-Object System.Net.Mail.MailAddress $emailTo
# Create Message
$message = new-object System.Net.Mail.MailMessage $from, $to
$message.Subject = $subject
$message.Body = $body
$attachment = new-object System.Net.Mail.Attachment($attachment)
$message.Attachments.Add($attachment)
# Set SMTP Server and create SMTP Client
$server = <your server>
$client = new-object system.net.mail.smtpclient $server
# Send the message
"Sending an e-mail message to {0} by using SMTP host {1} port {2}." -f $to.ToString(), $client.Host, $client.Port
try {
$client.Send($message)
"Message to: {1}, from: {0} has beens successfully sent" -f $from, $to
}
catch {
"Exception caught in CreateTestMessage: {0}" -f $Error.ToString()
}
}
(Thanks to Thomas Lee (tfl#psp.co.uk) - I tweaked this from his code at http://powershell.com/cs/media/p/357.aspx)

Answer 2

The Send-MailMessage cmdlet doesn't have any output after you send emails, I wonder where the output comes from? Can you include the command you use and the output?
As to your subject line, you can reduce it to one line only:
$subject = "$env:ComputerName : $env:UserName : System Summary"
The Send-MailMessage has an Encoding parameter, have you tried it?

Answer 3

This happened to me when I used Send-MailMessage with the default encoding (ASCII) when there were spaces in the subject.
First, to answer the question about the Encoding parameter: You are trying to pass it as a string (ie "-Encoding ASCII"), when you should be using this type of syntax instead: "-Encoding ([System.Text.Encoding]::ASCII)".
This "encoding in the subject" issue happened to me, and I narrowed it down to spaces in the subject. To demonstrate:
This will not contain encoding in the subject:
Send-MailMessage -To "alice#example.com" -From "bob#example.com" -Smtp "localhost" -Subject "one" -BodyAsHtml "body1" -Encoding ([System.Text.Encoding]::ASCII)
But this will:
Send-MailMessage -To "alice#example.com" -From "bob#example.com" -Smtp "localhost" -Subject "one two" -BodyAsHtml "body1" -Encoding ([System.Text.Encoding]::ASCII)
Note that the only material difference is the space in the subject.
If I specify UTF8 as the encoding, there is no encoding in the subject:
Send-MailMessage -To "alice#example.com" -From "bob#example.com" -Smtp "localhost" -Subject "one" -BodyAsHtml "body1" -Encoding ([System.Text.Encoding]::UTF8)
But as you say, it looks fine in Outlook, so I presume that the subject is correct. I'm not an expert on email formats or text-encoding, so I won't speculate as to why.