PowerShell

Example to Add Several BCC Email Recipients

See more Email Object Examples

Demonstrates how to call AddBCC once per email recipient. PowerShell

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

$success = $false

$email = New-Object Chilkat.Email

$email.Subject = "Test email subject"
$email.Body = "Test email body"

$email.From = "Test <joe@example.com>"

# Add a primary TO recipient
$email.AddTo("Elizabeth","elizabeth@example.com")

# Add a CC recipient.
$email.AddCC("Jerry","jerry@example.com")

# Add 2 BCC recipients.
$email.AddBcc("Mira","mira@example.com")
$email.AddBcc("Alexander","alex@example.com")

# BCC recipients will not be present in the MIME of the email that is sent.
# However, the BCC recipients are included in the recipients provided to the SMTP server
# during the SMTP protocol conversation. This will be shown below.

# First, let's look at the MIME.
$($email.GetMime())

# MIME-Version: 1.0
# Date: Sat, 30 Oct 2021 07:58:32 -0500
# Message-ID: <183D5F51163BE4374B494D2ED067DE2783CC761B@SLICE>
# Content-Type: text/plain; charset=us-ascii; format=flowed
# Content-Transfer-Encoding: 7bit
# X-Priority: 3 (Normal)
# Subject: Test email subject
# From: Test <joe@example.com>
# To: Elizabeth <elizabeth@example.com>
# Cc: Jerry <jerry@example.com>
# 
# Test email body

# Notice that the BCC recipients do not appear in the MIME.  But don't worry, they are still present within the email object.
# The difference between CC and BCC recipients is that CC recipients appear in the MIME.  Thus, the recipient of the email
# can see the CC recipients, but cannot see and is unaware of the BCC recipients.

# ----------------------------------------------------------------------------------------------
# Let's send the above email and examine the SMTP session log to show that the BCC recipients also receive the email.

$mailman = New-Object Chilkat.MailMan

$mailman.SmtpHost = "smtp.example.com"
$mailman.SmtpUsername = "myUsername"
$mailman.SmtpPassword = "myPassword"
$mailman.SmtpSsl = $true
$mailman.SmtpPort = 465

$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!")

# Examine the SMTP session log.
$($mailman.SmtpSessionLog)

# Here you can see the session log and the BCC email addresses included in the "RCPT TO" commands.

# 220 smtp.example.com ESMTP Example SMTP Service
# EHLO SLICE<CRLF>
# 250-smtp.example.com
# 250-8BITMIME
# 250-AUTH PLAIN LOGIN
# 250 Ok
# AUTH LOGIN<CRLF>
# 334 VXNlcm5hbWU6
# ***<CRLF>
# 334 UGFzc3dvcmQ6
# {PasswordOrCredentials}
# 235 Authentication successful.
# MAIL FROM:<joe@example.com><CRLF>
# 250 Ok
# RCPT TO:<elizabeth@example.com><CRLF>
# 250 Ok
# RCPT TO:<jerry@example.com><CRLF>
# 250 Ok
# RCPT TO:<mira@example.com><CRLF>
# 250 Ok
# RCPT TO:<alex@example.com><CRLF>
# 250 Ok
# DATA<CRLF>
# 354 End data with <CR><LF>.<CR><LF>
# {388 bytes}
# <CRLF>.<CRLF>
# 250 Ok
# QUIT<CRLF>
# 221 Bye