Send email using Python 3.

sendmail.py

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

from_addr = "[email protected]"
to_addr = "[email protected]"

msg = MIMEMultipart()
msg['From'] = from_addr
msg['To'] = to_addr
msg['Subject'] = "测试发送"
body = "最近过得怎么样?"
msg.attach(MIMEText(body, 'plain'))

server = smtplib.SMTP('smtp.163.com', 25)
server.ehlo()
server.starttls()
server.ehlo()

server.login("msn4399", "password")

text = msg.as_string()
server.sendmail(from_addr, to_addr, text)