如何对域名邮箱发送邮件

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

# 邮件服务器配置
smtp_server = 'smtp.yourdomain.com'
smtp_port = 587
smtp_username = 'your_email@yourdomain.com'
smtp_password = 'your_password'

# 收件人信息
to_addr = 'recipient@example.com'
from_addr = 'your_email@yourdomain.com'
subject = 'Test Email'

# 邮件内容
msg = MIMEText('This is a test email.', 'plain', 'utf-8')
msg['From'] = Header(from_addr)
msg['To'] = Header(to_addr)
msg['Subject'] = Header(subject)

# 发送邮件
try:
    server = smtplib.SMTP(smtp_server, smtp_port)
    server.starttls()  # 启动 TLS 加密
    server.login(smtp_username, smtp_password)
    server.sendmail(from_addr, [to_addr], msg.as_string())
    server.quit()
    print('邮件发送成功')
except Exception as e:
    print('邮件发送失败:', e)