使用python3发送简单的电子邮件

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

sender = 'sender@example.com'
receiver = 'receiver@example.com'

subject = '邮件主题'
message = '邮件正文'

msg = MIMEText(message, 'plain', 'utf-8')
msg['Subject'] = Header(subject, 'utf-8')

smtp_server = 'smtp.example.com'
smtp_port = 25

smtp_obj = smtplib.SMTP(smtp_server, smtp_port)

username = 'your_username'
password = 'your_password'

smtp_obj.login(username, password)

smtp_obj.sendmail(sender, receiver, msg.as_string())

smtp_obj.quit()