Python Gmail BCC SMPT

I was lacking personal examples for a Python SMTP sender and ran into the puzzle of BCC without listing the recipients in the header. It started with a discussion of timeouts of governing connections against a default receive connector on a Microsoft Edge Transport server, so there's a sleep in there too.

It's not perfect, but it is a good starting place....

#!/usr/bin/python

#

# gmail maximum message recipients in 24 hours: 500

#

import smtplib, getpass, time, sys

def Send_BCC_gmail(username, password, bcc):

    message_subject = "bcc only test"

    message_text = "this is \r\nonly \r\na test"

    flServerConnect = False

    try:

        SMTPServer = smtplib.SMTP_SSL('smtp.gmail.com', 465)

        SMTPServer.set_debuglevel(1)

        SMTPServer.login(username,password)

        flServerConnect = True

    except:

        e = sys.exc_info()[0]

        print("Error: %s" % e)

    if flServerConnect == True:

        try:

            for toaddr in bcc:

                message = "From: %s\r\n" % username \

                    + "To: %s\r\n" % toaddr \

                    + "Subject: %s\r\n" % message_subject \

                    + "\r\n" \

                    + message_text

                SMTPServer.sendmail(username, toaddr, message)

                time.sleep(.002)

        except:

            print("Error: %s" % sys.exc_info()[0])

            print("Error: %s" % sys.exc_info()[1])

            print("Error: %s" % sys.exc_info()[2].tb_lineno)

            print ('\r\nNot sent...   : (\r\n')

        finally:

            SMTPServer.quit()

            print ('Sent...   : )')

       

       

def main():

    username = input("Type your username and press enter: ")

    password = getpass.getpass("Type your password and press enter: ")

    bcc=[]

    bccpart = "."

    while bccpart > "" :

        bccpart = input("Additional Name. end list with an empty line by itself: ")

        if bccpart > "":

            bcc.append(bccpart)

    print(bcc)

    ## bcc = ['lesleyphillipsii@yahoo.com','lesleyphillipsii@gmail.com']

    Send_BCC_gmail(username, password, bcc)

if __name__ == "__main__": main()

When you run it it produces the following output...



And here is the important part of the header...