如何使用Python发送带附件的邮件？smtplib实战指南

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders

sender = "your_email@example.com"
receiver = "target_email@example.com"
subject = "这是一封带附件的测试邮件"
smtp_server = "smtp.example.com"
smtp_port = 465  # SSL端口
password = "your_password_or_auth_code"

msg = MIMEMultipart()
msg['From'] = sender
msg['To'] = receiver
msg['Subject'] = subject

# 添加正文
body = "你好，这是系统自动发送的邮件，请查收附件。"
msg.attach(MIMEText(body, 'plain'))

# 添加附件
filename = "test.txt"  # 替换为你想发送的文件名
attachment = open("path/to/test.txt", "rb")  # 注意路径要正确

part = MIMEBase('application', 'octet-stream')
part.set_payload(attachment.read())
encoders.encode_base64(part)
part.add_header('Content-Disposition',
                f'attachment; filename="{filename}"')

msg.attach(part)

try:
    server = smtplib.SMTP_SSL(smtp_server, smtp_port)
    server.login(sender, password)
    server.sendmail(sender, receiver, msg.as_string())
    print("邮件发送成功")
except Exception as e:
    print(f"发送失败: {e}")
finally:
    server.quit()

for file in ["file1.txt", "file2.pdf"]:
    part = MIMEBase('application', 'octet-stream')
    part.set_payload(open(file, "rb").read())
    encoders.encode_base64(part)
    part.add_header('Content-Disposition',
                    f'attachment; filename="{file}"')
    msg.attach(part)