Gmail 正在将我的网络应用程序的电子邮件过滤为垃圾邮件 [已关闭]

Gmail 正在将我的网络应用程序的电子邮件过滤为垃圾邮件

python
import smtplib
from email.mime.text import MIMEText
from email.header import Header
sender = 'your_email@gmail.com'
receiver = 'recipient_email@gmail.com'
subject = 'Test Email'
smtp_server = 'smtp.gmail.com'
smtp_port = 587
username = 'your_email@gmail.com'
password = 'your_password'
msg = MIMEText('This is a test email.', 'plain', 'utf-8')
msg['From'] = Header(sender, 'utf-8')
msg['To'] = Header(receiver, 'utf-8')
msg['Subject'] = Header(subject, 'utf-8')
# 添加反垃圾邮件标头
msg['DKIM-Signature'] = 'your_dkim_signature'
msg['DMARC-Report'] = 'your_dmarc_report'
msg['SPF'] = 'your_spf_record'
try:
    server = smtplib.SMTP(smtp_server, smtp_port)
    server.starttls()
    server.login(username, password)
    server.sendmail(sender, receiver, msg.as_string())
    server.quit()
    print('Email sent successfully!')
except Exception as e:
    print('Failed to send email:', str(e))