Script to send messages by sendmail and smtplib, using python.

sendingmessage.py

#!/usr/bin/python

#
#   Author: Gustavo Walbon ( [email protected] )
#


# Import smtplib for the actual sending function
import smtplib
import sys

# Import the email modules we'll need
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from optparse import OptionParser

def main():
    parser = OptionParser(usage="""\
           It is necessary define the options to send message.
                Usage: %prog -l Level -s "Subject" -t "user@server" -f "me@local" -m "Message"\
            """)
    parser.add_option('-l', '--lvl',type='string', action='store',help=""" Indicates the level of message, WARN, ERROR or OK.""")
    parser.add_option('-s', '--sub',type='string', action='store',help=""" Subject of message. """)
    parser.add_option('-t', '--to',type='string', action='store',help=""" Destination of message that will be send. """)
    parser.add_option('-f', '--frm',type='string', action='store',help=""" Who are that be sending the email. """)
    parser.add_option('-m', '--msg', type='string', action='store', help=""" The body message to send. """)

    (opts, args) = parser.parse_args()
    if not opts.lvl or not opts.sub or not opts.frm or not opts.msg or not opts.to :
        parser.print_help()
        sys.exit(1)

    msg = MIMEMultipart('alternative')

    if opts.lvl == "WARN":
	msg['Subject'] = "[WARNING] " + opts.sub
	msg['X-Priority'] =  '1'
	msg['X-MSMail-Priority'] =  'High'

    elif opts.lvl == "ERROR":
	msg['Subject'] = "[ERROR] " + opts.sub
	msg['X-Priority'] =  '1'
	msg['X-MSMail-Priority'] =  'High'

    elif opts.lvl == "OK":
	msg['Subject'] = opts.sub

    else:
	print "\n [!] Wrong level \n"
	parser.print_help()
	return -1

    msg['From'] = opts.frm
    msg['To'] = opts.to

    body = MIMEText(opts.msg, 'plain')

    msg.attach(body)

    # Send the message via local SMTP server.
    s = smtplib.SMTP('localhost')
    # sendmail function takes 3 arguments: sender's address, recipient's address
    # and message to send - here it is sent as one string.
    
    try:
	Response = s.sendmail(opts.frm, opts.to, msg.as_string())
	print "\n[OK] Sent email.\n"
    except(smtplib.SMTPException), error:
	print "\n[!!] Sorry, we had a problem while tried send a email.\n"
	print error
	print "\n"
    s.quit()

if __name__ == '__main__':
        main()