使用 AT00001 删除电子邮件附件文件名

Question

发送带有多个附件的邮件会删除附件文件名。附件名称更改为 ATT00001.xlsx。根据以下链接，在附件之前添加了“正文”部分，但没有运气。

https://exchange-server-guide.blogspot.com/2015/11/att00001.txt-file-fix-email-attachment-issue.html

供参考，分享如下代码sn-p。任何建议表示赞赏。

msg = MIMEMultipart()
ctype = content_type
maintype, subtype = ctype.split('/', 1)
msg['Subject'] = subject
msg['To'] = 'abc@sample.com'
msg['From'] = sender
smtp_client = smtplib.SMTP(smtp_host + ':' + smtp_port)
smtp_client.starttls()
smtp_client.login(sender, smtp_login_password)
body_part = MIMEText(body, 'plain')
msg.attach(body_part)
for file_path in file_paths :
    temp_arr = file_path.split('/')
    file_name = temp_arr[len(temp_arr) - 1]
    msg.add_header('Content-Disposition', 'attachment', filename=file_name)
    fp = open(file_path, 'rb')
    attachment = MIMEBase(maintype, subtype)
    attachment.set_payload(fp.read())
    fp.close()
    encode_base64(attachment)
    msg.attach(attachment)
smtp_client.sendmail(sender, 'abc@sample.com', msg.as_string())
smtp_client.quit() 

Answer 1

您正在将Content-Disposition: 添加到多部分容器中。您应该将它添加到每个单独的身体部位。

改变这个：

for file_path in file_paths :
    temp_arr = file_path.split('/')
    file_name = temp_arr[len(temp_arr) - 1]
    msg.add_header('Content-Disposition', 'attachment', filename=file_name)
    fp = open(file_path, 'rb')
    attachment = MIMEBase(maintype, subtype)
    attachment.set_payload(fp.read())
    fp.close()
    encode_base64(attachment)
    msg.attach(attachment)

类似

for file_path in file_paths:
    file_name = file_path.split('/')[-1]
    attachment = MIMEBase(maintype, subtype)
    with open(file_path, 'rb') as fp:
        attachment.set_payload(fp.read())
    attachment.add_header('Content-Disposition', 'attachment', filename=file_name)
    encode_base64(attachment)
    msg.attach(attachment)

我还冒昧地切换到使用上下文管理器（with 语句）。我还简化了文件名提取。