(CkPython) Example to Add Several BCC Email Recipients

See more Email Object Examples

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux

import sys
import chilkat

email = chilkat.CkEmail()

email.put_Subject("Test email subject")
email.put_Body("Test email body")

email.put_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.
print(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>
# CKX-Bounce-Address: 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.

# -- Note: You may notice the "CKX-Bounce-Address" header.  This is a header that appears in the MIME
# -- but is automatically removed when a Chilkat method to send email is called.
# -- Chilkat automatically removes all headers beginning with "CKX-" when sending email.

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

mailman = chilkat.CkMailMan()

mailman.put_SmtpHost("smtp.example.com")
mailman.put_SmtpUsername("myUsername")
mailman.put_SmtpPassword("myPassword")
mailman.put_SmtpSsl(True)
mailman.put_SmtpPort(465)

success = mailman.SendEmail(email)
if (success != True):
    print(mailman.lastErrorText())
    sys.exit()

success = mailman.CloseSmtpConnection()
if (success != True):
    print("Connection to SMTP server not closed cleanly.")

print("Mail Sent!")

# Examine the SMTP session log.
print(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