python3发送邮件

#coding:utf-8
import smtplib
from email.mime.text import MIMEText
from email.utils import formataddr

def sendmail():
    sender=‘你的163邮箱账号‘ #发件人邮箱
    receivers=‘xx@qq.com‘  #收件人邮箱

    msg = MIMEText(‘你好啊‘,‘plain‘,‘utf-8‘)  #邮件内容，plain文本格式，utf-8编码
    msg[‘From‘] = formataddr(["你的163邮箱名称",sender])   #发件人邮箱名称、账号
    msg[‘To‘] = formataddr(["飞",receivers])   #收件人邮箱名称、账号
    msg[‘Subject‘] = "主题" #邮件主题

    try:
        server=smtplib.SMTP("smtp.163.com",25)  #发件人邮箱中的SMTP服务器，端口是25
        server.login(sender,"你的163邮箱密码")    #发件人邮箱账号、密码
        server.sendmail(sender,[receivers,],msg.as_string())   #发件人邮箱、收件人邮箱、发送邮件
        server.quit() #关闭连接
        print ("邮件发送成功")
    except smtplib.SMTPException:
        print ("邮件发送失败")

sendmail()