Python 邮件发送

Posted 2021-12-02 yutb

SMTP（Simple Mail Transfer Protocol）即简单邮件传输协议，它是一组用于由源地址到目的地址传送邮件的规则，由它来控制信件的中转方式。

python 的 smtplib 模块用于发送电子邮件。它对 smtp 协议进行了简单的封装。

import smtplib

smtp = smtplib.SMTP(host, port) # 实例化对象
smtp.login(username, password) # 登录邮箱账号
smtp.sendmail(sender, receiver, msg.as_string()) # 发送邮件

email 模块主要负责构造邮件。

from email.mime.multipart import MIMEMultipart    # 文本和附件
from email.mime.text import MIMEText    # 文本和html        
from email.mime.image import MIMEImage    # 图片

简单实例：

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

host = "smtp.XXX.com"
port = 
username = ""
password = ""
sender = ‘‘
receiver = [‘‘]

content = ‘‘
message = MIMEText(content, ‘plain‘, ‘utf-8‘)    # 邮件内容，格式，编码
message[‘From‘] = sender
message[‘To‘] = ‘,‘.join(receiver)
subject = ‘‘
message[‘Subject‘] = Header(subject, ‘utf-8‘)    # 邮件主题

try:
    smtpObj = smtplib.SMTP(host, port)
    smtpObj.login(username,password)
    smtpObj.sendmail(sender, receiver, message.as_string())
    print("邮件发送成功")
    smtpObj.quit()
except smtplib.SMTPException:
    print("邮件发送失败")

MIMEText 文本格式：plain / html 。