send bulk email to all recipients from RecListFileName

bulkmail.py

#!/usr/bin/env python3

#....ported to python3 02/2020
# ....bulkmail.py: send bulk email to recipients in RecListFileName
# ....Werner Joss, 2017,2018,2020
# ....License: GPL
# ....Message is from MsgFileName, preceeded by 'Hallo <Name>,\n'
# ....RecListFileName must contain one Recipient per line in the form 'Vorname Name <email>'	note: surrounding <> for email Adress is required !
# ....Default Subject may be overridden in MsgFile (line starting with 'Subject:'
# ....this can send messages with utf-8 encoding, not just ascii (as bulkmail_asc.py) 30.04.17
# ....add max No of Msgs sent per run (SPAM Protection) 10.03.18
# ....guess gender :) - see https://pypi.python.org/pypi/gender-detector 10.03.18 - replaced by gender_guesser: https://pypi.org/project/gender-guesser/ 02/2020
# ....getopt Argument Parser 11.03.18
# ....add Attach File Option 11.03.18
# ....fix some bugs 18.03.18

import getopt, sys
import smtplib
from email.utils import formatdate
import datetime
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
import codecs
import gender_guesser.detector as gender_detector

def send_email(FROM, TO, SUBJECT, TEXT, att_file):

	date = datetime.datetime.now().strftime('%d %b %Y %H:%M')

	# Prepare actual message

	msg = MIMEMultipart()
	msg['Subject'] = SUBJECT
	msg['From'] = FROM
	msg['To'] = TO[0]
	#msg['Date'] = date	#	obsolete, does not work any more
	msg["Date"] = formatdate(localtime=True)


	text = MIMEText(TEXT.encode('utf-8'), 'plain', 'utf-8')
	msg.attach(text)

	# add attachment
	if len(att_file) > 0:
		anhang = MIMEApplication(open(att_file, "rb").read())
		anhang.add_header('Content-Disposition', 'attachment', filename=att_file)
		msg.attach(anhang)

	try:
		server = smtplib.SMTP(smtp_server, 25)  # be sure to use correct port (25 for std smtp)
		server.ehlo()
		server.starttls()
		server.login(user, pwd)
		server.sendmail(FROM, TO, msg.as_string('utf-8'))
		server.close()
	except:
		logtext = 'failed to send mail to %s' % TO
		print(logtext)
		if CreateLogFile:
			LogFile.write(logtext)

def usage(progname):
	print('usage: %s [-l -s -n] -r <RecListFileName> -m <MsgFileName>' % progname)
	print('(-l = create Logfile, -s = Simulate, -n = Nice)')
	sys.exit(2)

#  Config (global variables):
FROM = 'George Bush <ghwbush@whitehouse.gov>'
# your smtp server credentials:
smtp_server = "smtp.whitehouse.gov"
user = "ghwbush"
pwd = "obama"

# ....Defaults:

Simulate = False	# nomen est omen :)
Nice = False #  True: Anrede 'Liebe(r)' statt 'Hallo' :)
CreateLogFile = False
TO = [FROM]  # must be a list
SUBJECT = 'Test bulk email'
TEXT = 'Test sending bulk-mail using smtp server'
RecListFileName = 'Recipients.lst'
MaxMsgNum = 128 # max. no# of messages to be sent in one run (SPAM Protection!) 10.03.18

RecListFileName = ''
MsgFileName = ''
AttachFileName = ''
try:
	progname = sys.argv[0]
	argv = sys.argv[1:] # wichtig !
	opts, args = getopt.getopt(argv,"lsnhr:m:a:",["RecListFileName=","MsgFileName=","AttachFileName="])
	#print 'opts',opts
	#print 'argv',argv
except getopt.GetoptError as err:
	print(str(err))
	usage(progname)
for opt, arg in opts:
	if opt == '-h':
		usage(progname)
	elif opt in ("-r", "--RecListFileName"):
		RecListFileName = arg
	elif opt in ("-m", "--MsgFileName"):
		MsgFileName = arg
	elif opt in ("-a", "--AttachFileName"):
		AttachFileName = arg
	elif opt == '-l':
		CreateLogFile = True
		#   print ('CreateLogFile')
	elif opt == '-n':
		Nice = True
		# print ('Nice', Nice)
	elif opt == '-s':
		Simulate = True
		# print ('Simulate')
	else:
		print('invalid option ', arg)
		sys.exit(2)

if (len(MsgFileName) < 1) and (len(RecListFileName) < 1):
	usage(progname)
if len(MsgFileName) < 1:
	print('no msg file specified')
	usage(progname)
if len(RecListFileName) < 1:
	print('no recipients file specified')
	usage(progname)

# read message (and subject) from MsgFile
Msg = ''
try:
	MsgFile = codecs.open(MsgFileName, 'r', 'UTF-8')
	line = MsgFile.readline()  # read 1st line
	if CreateLogFile:
		LogFileName = MsgFileName + '.log'
		LogFile = codecs.open(LogFileName, 'w', 'UTF-8')
	while line:
		sline = line.strip()
		if sline.startswith('Subject:'):
		# extract Subject
			SUBJECT = sline.replace('Subject:', '')
		else:
			Msg += line
		line = MsgFile.readline()

	LogMsg = 'Message:\n' + Msg + '\nhas been sent to:\n'
	if CreateLogFile:
		LogFile.write(LogMsg)
	MsgFile.close()
except:
	print('could not read %s - exiting' % MsgFileName)
	if CreateLogFile:
		LogFile.write('could not read %s - exiting' % MsgFileName)
	sys.exit()

d = gender_detector.Detector()
# process RecListFile, send emails to each recipient
try:
	RecListFile = open(RecListFileName, 'r')
	line = RecListFile.readline();  # read 1st line
	#	print(line)
	lineNum = 1
	while line:
		line = line.strip()
		#	print(line)
		if len(line) > 0 and not line.startswith('#'):
			parts = line.split(' ')
			Vorname = parts[0]
			Name = parts[1]
			mailadr = parts[2]
			TO = []
			TO.append(Vorname + ' ' + Name + ' ' + mailadr)
			gender = d.get_gender(Vorname)
			# print('Gender:', gender)
			Greet = 'Hallo' # default
			if (Nice):
				if (gender == 'male'):
					Greet = 'Lieber'
				elif (gender == 'female'):
					Greet = 'Liebe'
			TEXT = '%s %s,\n%s ' % (Greet, Vorname, Msg)
			# print('%s %s\n' % (Greet, Vorname))
			if (not Simulate):
				send_email(FROM, TO, SUBJECT, TEXT, AttachFileName)
				print('Message %d from %s has been sent to: %s' % (lineNum, MsgFileName, TO))
			else:
				print('Message %d from %s would be sent to: %s' % (lineNum, MsgFileName, TO))
			lineNum += 1
			LogMsg += line + '\n'
			if CreateLogFile:
				LogFile.write(line + '\n')
			if (lineNum > MaxMsgNum):
				line = 'max No of Messages (%d) for run 1 reached, sending stopped!' % (MaxMsgNum)
				LogMsg += line + '\n'
				if CreateLogFile:
					LogFile.write(line + '\n')
				break
		line = RecListFile.readline()
except:
	line = 'could not read %s - exiting' % RecListFileName
	print(line)
	if CreateLogFile:
		LogFile.write(line)
	sys.exit()
RecListFile.close()
if CreateLogFile:
	LogFile.close()

# Log Message as email to Sender
TO = [FROM]
if (not Simulate):
	send_email(FROM, TO, SUBJECT, LogMsg, AttachFileName)