from email.generator import BytesGenerator
import email.mime.multipart
import email.mime.text
import smtplib

smtpSrv = 'localhost'
smtpPort = 2525

def sendMail (fromAddr, toAddr, subject, body = '', attachment = ''):
    message = email.mime.multipart.MIMEMultipart()
    message.add_header('From',fromAddr)
    message.add_header('To',toAddr)

    message['Subject'] = email.header.Header(subject,'utf-8')

    if (body != ''):
        msgPart = email.mime.text.MIMEText(body,'plain','utf-8')
        message.attach(msgPart)
    if (attachment != ''):
        if os.path.exists(attachment) == True:
            filename = attachment.rpartition(os.sep)[2]
            fp = open(attachment,'rb')
            msgPart = email.mime.base.MIMEBase('application','octet-stream')
            msgPart.set_payload(fp.read())
            fp.close()
            email.encoders.encode_base64(msgPart)
            msgPart.add_header('Content-Disposition','attachment',filename=filename)
            message.attach(msgPart)
    if 0:
        out = open("/tmp/msg", "wb")
        gen = BytesGenerator(out)
        gen.flatten(message)
        gen.close()
        out.close()
    else:
        smtpCon = smtplib.SMTP(smtpSrv,smtpPort)
        smtpCon.send_message(message,mail_options=['UTF8SMTP','8BITMIME'])
        smtpCon.quit()

sendMail('rzrobot@seznam.cz','msladek@volny.cz','žluťoučký kůň','úpěl ďábelské ódy')