邮箱域名被拉入黑名单

import dkim
import smtplib
from email.mime.text import MIMEText

# 配置DKIM签名参数
dkim_private_key = open('path/to/private.key').read()
dkim_selector = 'default'
dkim_domain = 'example.com'

# 创建邮件内容
msg = MIMEText('Hello, this is a test email.')
msg['Subject'] = 'Test Email'
msg['From'] = 'sender@example.com'
msg['To'] = 'recipient@example.com'

# 签名邮件
signed_msg = dkim.sign(msg.as_string(), dkim_selector, dkim_domain, dkim_private_key)

# 发送邮件
smtp_server = smtplib.SMTP('smtp.example.com', 587)
smtp_server.starttls()
smtp_server.login('sender@example.com', 'password')
smtp_server.sendmail('sender@example.com', 'recipient@example.com', signed_msg)
smtp_server.quit()