import smtplib
from email.header import Header
from email.mime.text import MIMEText

sender = '888888@qq.com' # 发送使用的邮箱
receivers = ['888888@qq.com'] # 收件人，可以是多个任意邮箱

message = MIMEText('这里是正文！', 'plain', 'utf-8')
message['From'] = Header("发送者", 'utf-8') # 发送者
message['To'] = Header("接收者", 'utf-8') # 接收者

subject = '这里是主题！'
message['Subject'] = Header(subject, 'utf-8')

try:
 # qq邮箱服务器主机
 # 常见其他邮箱对应服务器：
 # qq:smtp.qq.com 登陆密码：系统分配授权码
 # 163:stmp.163.com 登陆密码：个人设置授权码
 # 126:smtp.126.com 登陆密码：个人设置授权码
 # gmail:smtp.gmail.com 登陆密码：邮箱登录密码 

 smtp = smtplib.SMTP_SSL('smtp.qq.com')

 # 登陆qq邮箱，密码需要使用的是授权码
 smtp.login(sender, 'abcdefghijklmn') 

 smtp.sendmail(sender, receivers, message.as_string())
 smtp.quit()
 print("邮件发送成功")
except smtplib.SMTPException:
 print("Error: 无法发送邮件")

html = """
html> 
 body> 
 h2> HTML /h2> 
 div style='font-weight:bold'> 
 格式邮件
 /div> 
 /body> 
/html> 
""" 
message = MIMEText(html,'html', 'utf-8') 

html = """
html> 
 body> 
 h2> HTML /h2> 
 div style='font-weight:bold'> 
 格式邮件带图片
 /div> 
 img src="cid:imageTest">
 /body> 
/html> 
"""

message = MIMEMultipart('related')

messageAlter = MIMEMultipart('alternative')
message.attach(messageAlter)

messageAlter.attach(MIMEText(html, 'html', 'utf-8'))

# 指定图片为当前目录
fp = open('test.png', 'rb')
messageImage = MIMEImage(fp.read())
fp.close()

# 定义图片ID，和图片中的ID对应
messageImage.add_header('Content-ID', 'imageTest>')
message.attach(messageImage)

from email.mime.multipart import MIMEMultipart

message = MIMEMultipart()

message.attach(MIMEText('这里一封带附件的邮件！', 'plain', 'utf-8'))

# 添加附件

# 其他格式如png,rar,doc,xls等文件同理。

attach = MIMEText(open('test.txt', 'rb').read(), 'base64', 'utf-8')
attach["Content-Type"] = 'application/octet-stream'
attach["Content-Disposition"] = 'attachment; filename="test.txt"'

message.attach(attach)