From 67f7b95c368c13c89808251498d8464bed4d45b4 Mon Sep 17 00:00:00 2001
From: Son NK <nguyenkims@hotmail.com>
Date: Sat, 16 Nov 2019 22:20:48 +0100
Subject: [PATCH] add Message-ID and Date header to email

---
 app/email_utils.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/app/email_utils.py b/app/email_utils.py
index 0ac3f0a9..0fecdfb5 100644
--- a/app/email_utils.py
+++ b/app/email_utils.py
@@ -1,10 +1,12 @@
 import os
 from email.message import EmailMessage
+from email.utils import make_msgid, formatdate
 from smtplib import SMTP
 
 from jinja2 import Environment, FileSystemLoader
 
 from app.config import SUPPORT_EMAIL, ROOT_DIR
+from app.log import LOG
 
 
 def _render(template_name, **kwargs) -> str:
@@ -78,6 +80,14 @@ def send_by_postfix(to_email, subject, plaintext, html):
     if html is not None:
         msg.add_alternative(html, subtype="html")
 
+    msg_id_header = make_msgid()
+    LOG.d("message-id %s", msg_id_header)
+    msg["Message-ID"] = msg_id_header
+
+    date_header = formatdate()
+    LOG.d("Date header: %s", date_header)
+    msg["Date"] = date_header
+
     smtp.send_message(msg, from_addr=SUPPORT_EMAIL, to_addrs=[to_email])