mail send script with SMTP over SSL and SMTP-AUTH

send-mail.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# send-mail.py - mail send script with SMTP over SSL and SMTP-AUTH
# usage: $0 [-n <sender name>] [-f <sender address>] <recipient address> <subject>

#----#----#----#----#----#----#----#----#----#----#----#----#----#----#----#
# 送信サーバ設定
mailserver = 'mailserver.example.com:25'
auth_user  = 'username'
auth_pass  = 'password'
#----#----#----#----#----#----#----#----#----#----#----#----#----#----#----#

def create_message( from_addr, to_addr, subject, body, encoding ):
        msg = MIMEText( body.encode(encoding), 'plain', encoding )
        msg['Subject']    = Header( subject, encoding )
        msg['From']       = from_addr
        msg['To']         = "<%s>" % to_addr
        msg['Date']       = formatdate( localtime=True )
        msg['Message-Id'] = make_msgid()
        msg['X-Mailer']   = sys.argv[0]
        return msg

def send_with_tls( from_addr, to_addr, msg, mailserver, auth_user, auth_pass ):
        server = mailserver.split(':',2)[0]
        port   = mailserver.split(':',2)[1]

        s = smtplib.SMTP( server, int(port) )
        s.ehlo()
        s.starttls()
        s.ehlo()
        s.login( auth_user, auth_pass )
        s.sendmail( from_addr, [to_addr], msg.as_string() )
        s.close

if __name__ == '__main__':
        import sys
        import smtplib
        from optparse       import OptionParser
        from email.MIMEText import MIMEText
        from email.Header   import Header
        from email.Utils    import formatdate
        from email.Utils    import make_msgid

        parser = OptionParser()
        parser.add_option("-n", "--name", dest="from_name", default='')
        parser.add_option("-f", "--from", dest="from_addr", default='nobody')
        (options, args) = parser.parse_args()

        # パラメータが足りなければヘルプ出して終了
        if len( args ) != 2 :
                print "Usage: %s [-n <sender name>] [-f <sender address>] <rcpient address> <subject>" % sys.argv[0]
                print "(本文は標準入力から)"
                quit()

        encoding = 'ISO-2022-JP'	# メール本文のエンコード指定
        to_addr  = args[0]
        subject  = args[1]
        sender   = "%s <%s>" % ( Header( options.from_name, encoding ), options.from_addr )

        body = ''
        for line in sys.stdin:
                body += line.decode('utf-8')	# STDINから本文を読取

        msg = create_message( sender, to_addr, subject, body, encoding )
        send_with_tls( options.from_addr, to_addr, msg, mailserver, auth_user, auth_pass )

msmtpつかうほうが良い（確信