(PowerShell) Send High Priority Email (SMTP, X-Priority header)

Demonstrates how to send high-priorty email (or lower priority email) by setting the X-Priority header field.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# The mailman object is used for sending and receiving email.
$mailman = New-Object Chilkat.MailMan

# Set the SMTP server (obviously, use your SMTP server, not chilkatsoft.com)
$mailman.SmtpHost = "smtp.chilkatsoft.com"

# Set the SMTP login/password (if required)
$mailman.SmtpUsername = "myUsername"
$mailman.SmtpPassword = "myPassword"

# Create a new email object
$email = New-Object Chilkat.Email

$email.Subject = "This is a test"
$email.Body = "This is a test"
$email.From = "Chilkat Support <support@chilkatsoft.com>"
$success = $email.AddTo("Chilkat Admin","admin@chilkatsoft.com")
# To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

# To send high-priority email, 
# add the X-Priority header field with the value "1" 
# to indicate highest-priority.
# A value of "3" is normal, which is the same as not setting
# the X-Priority header at all, and "5" is the lowest. 
# "2" and "4" are in-betweens.

# Microsoft Outlook might add the following headers when
# sending high-priority email.

# X-Priority: 1 (Highest) 
# X-MSMail-Priority: High 
# Importance: High 

# The X-Priority header alone is enough to make the email high-priority.

$email.AddHeaderField("X-Priority","1")

# Call SendEmail to connect to the SMTP server and send.
# The connection (i.e. session) to the SMTP server remains
# open so that subsequent SendEmail calls may use the
# same connection.  
$success = $mailman.SendEmail($email)
if ($success -ne $true) {
    $($mailman.LastErrorText)
    exit
}

$success = $mailman.CloseSmtpConnection()
if ($success -ne $true) {
    $("Connection to SMTP server not closed cleanly.")
}

$("Mail Sent!")