(PowerShell) Send email using SMTP STARTTLS.

Send email using SMTP STARTTLS. With STARTTLS, the SMTP client connects to the SMTP server on port 25 (non-SSL) and then issues a STARTTLS command to convert the connection to a secure TLS channel.

Download: Chilkat .NET Assemblies

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet2.dll")

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

#  Any string argument automatically begins the 30-day trial.
$success = $mailman.UnlockComponent("30-day trial")
if ($success -ne $true) {
    $($mailman.LastErrorText)
    exit
}

#  Set the SMTP server.
$mailman.SmtpHost = "smtp.mymailserver.com"

$mailman.SmtpUsername = "myLogin"
$mailman.SmtpPassword = "myPassword"

$mailman.StartTLS = $true

#  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>"
$email.AddTo("Chilkat Admin","admin@chilkatsoft.com")

$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!")