錯誤的MIME類型EmailMultiAlternatives附件

Question

我發信用下面的代碼：

txt_msg_body = get_template('{0}.txt'.format(template_name)).render(ctx) 
html_msg_body = get_template('{0}.html'.format(template_name)).render(ctx) 
msg = EmailMultiAlternatives(subject, txt_msg_body, smtp_from, recipients) 
msg.attach_alternative(html_msg_body, "text/html") 
... 
with open(file_path, 'rb') as fh: 
    data = fh.read() 
... 
msg.attach(name, data, 'application/pdf') 
msg.send() 

儘管明確指定參數CONTENT_TYPE，電子郵件客戶端發出預期的警告「：應用/ PDF ;找到：application/octet-stream（.bin）「。爲什麼？

Answer 1

我覺得自己很愚蠢。問題是兩個錯誤的結果。首先，附件名稱應該有擴展名！其次，RoundCube必須使用PHP和mime_magic。