python 发邮件 utf-8

import smtplib
from operator import itemgetter, attrgetter
from email.mime.text import MIMEText
from email.header import Header
from email.mime.multipart import MIMEMultipart
from email.utils import COMMASPACE,formatdate

to = ['wangquanjun@xxx.com']
mail = u'我爱北京天安门'

msg = MIMEMultipart()
msg['From'] = 'spider@yq01-ps-exdata-svr00.yq01'
msg['Subject'] = Header('外部数据实时引入小时级监控', 'utf-8')
msg['Date'] = formatdate(localtime=True)
msg['To'] = 'wangquanjun@xxx.com'
msg.attach(MIMEText(mail, _subtype='plain', _charset='utf-8'))

server = smtplib.SMTP('xxx-in.xxx.com')
err = server.sendmail('root@yq01-ps-exdata-svr00.yq01', to, msg.as_string())
print err
server.quit()

def sendEmail(dic):
    mail = dic2table(dic)

    msg = MIMEMultipart()
    msg['From'] = '你的发件地址，可以写主机名'
    msg['Subject'] = Header('我爱北京天安门', 'utf-8')
    msg['Date'] = formatdate(localtime=True)
    #to = ['wangquanjun@xxx.com', 'wangquanjun@xxx.com']
    msg['To'] = ','.join(to)
    msg.attach(MIMEText(mail, _subtype='plain', _charset='utf-8'))

    server = smtplib.SMTP('邮件服务器主机名')
    err = server.sendmail('****@yq01-ps-exdata-svr00.yq01', to, msg.as_string())
    logger.info(err)
    server.quit()