From 7519a43d8f6ada651f3633aaea20eb122c3b39f6 Mon Sep 17 00:00:00 2001
From: Matthias Maennich <matthias@maennich.net>
Date: Tue, 11 Oct 2011 22:16:53 +0200
Subject: [PATCH] smtp: add Date header as required for rfc5322

this prevents from bad header classifications in mail filters
---
 src/calibre/utils/smtp.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/utils/smtp.py b/src/calibre/utils/smtp.py
index 2887f985a4..1702aaea5c 100644
--- a/src/calibre/utils/smtp.py
+++ b/src/calibre/utils/smtp.py
@@ -18,11 +18,13 @@ def create_mail(from_, to, subject, text=None, attachment_data=None,
     assert text or attachment_data
 
     from email.mime.multipart import MIMEMultipart
+    from email.utils import formatdate
 
     outer = MIMEMultipart()
     outer['Subject'] = subject
     outer['To'] = to
     outer['From'] = from_
+    outer['Date'] = formatdate() 
     outer.preamble = 'You will not see this in a MIME-aware mail reader.\n'
 
     if text is not None: