mail.py

#!/usr/bin/env python

"""A very simple mail tool that I use on a Synology NAS to send email,
where an usuable "mail" command line tool doesn't seem to be available
via ipkg, in particular if I don't want to install a local SMTP server.
"""

import sys
from optparse import OptionParser
import smtplib
from email.mime.text import MIMEText


def main():
 parser = OptionParser()
 parser.add_option("-s", dest="subject", help="Subject")
 parser.add_option("-f", dest="from_", help="From address")
 parser.add_option("--host", dest="host", help="SMTP Host")
 parser.add_option("--port", dest="port", help="SMTP Port", default=25)
 parser.add_option("-q", dest="quiet", help="Be quiet.", default=False)

 (options, recipients) = parser.parse_args()

 if not recipients:
 print "No recipients specified."
 return 1

 stdin = sys.stdin.read()
 if not stdin.strip():
 if not options.quiet:
 print "No stdin text, not sending message."
 return 1

 smtp = smtplib.SMTP()
 smtp.connect(options.host, options.port)
 for recipient in recipients:
 msg = MIMEText(stdin)
 msg['Subject'] = options.subject
 msg['From'] = options.from_
 msg['To'] = recipient
 smtp.sendmail(options.from_, [recipient], msg.as_string())
 smtp.quit()



if __name__ == '__main__':
 sys.exit(main() or 0)