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Editorial Team
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Asked: 2026-06-03T07:29:09+00:00

We have a python script that sends mails everyday to an xml list of

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We have a python script that sends mails everyday to an xml list of addresses. Those mails are always marked as spam by Gmail. Here’s the code: 

            email_body =  '<html><body><div style="text-align: center; font-family: serif; font-size: 15px;"><br/><br/>@<br/><br/>' + text_splited[i] + '<br/><br/>@<br/><br/><a href="http://anemailstory.net/"><i>Tr@ces</i></a><br/><br/> - <br/><br/><a href="http://anemailstory.net/unsubscribe.html">unsubscribe</a><br/><br/></div></body></html>'  
#text corresponding to that subcription date    

            # email     
            msg = MIMEMultipart('alternative') #Create Multipart msg (allows html)
            msg['To'] = email.utils.formataddr(('Recipient', 'readers@traces.net'))
            msg['From'] = email.utils.formataddr(('Traces', 'traces@anemailstory.net'))
            msg['Subject'] = 'Tr@ces - Part #' + str((i+2))

            part_html = MIMEText(email_body, 'html')
            msg.attach(part_html)

            server = smtplib.SMTP('localhost')
            server.set_debuglevel(False) # show communication with the server
            try:
                server.sendmail('traces@noreply.net', email_addrs, msg.as_string())
            finally:
                server.quit()

And here’s the generated email:

Return-path: <traces@noreply.net>
Envelope-to: mimmo@mimmo.com
Delivery-date: Wed, 25 Apr 2012 23:59:07 -0600
Received: from localhost ([127.0.0.1] helo=host131.hostmonster.com)
    by host131.hostmonster.com with esmtp (Exim 4.76)
    (envelope-from <traces@noreply.net>)
    id 1SNHjO-0006T0-C2; Wed, 25 Apr 2012 23:59:06 -0600
Content-Type: multipart/alternative;
    boundary="===============1468314745133566460=="
MIME-Version: 1.0
To: Recipient <readers@traces.net>
From: Traces <traces@anemailstory.net>
Subject: Tr@ces - Part #9
X-Identified-User: {:host131.hostmonster.com:andrecas:host131.hostmonster.com} {sentby:program running on server}

--===============1468314745133566460==
Content-Type: text/html; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit

<html><body><div style="text-align: center; font-family: serif; font-size: 15px;"><br/><br/>@<br/><br/><br/>Mail content<br/><br/><br/>@<br/><br/><a href="http://anemailstory.net/"><i>Tr@ces</i></a><br/><br/> - <br/><br/><a href="http://anemailstory.net/unsubscribe.html">unsubscribe</a><br/><br/></div></body></html>
--===============1468314745133566460==--

Do you have any solution for this?

Thanks.

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1 Answer

  1. Editorial Team

    You email consists of almost only HTML and a link. That smells like spam.

    Suggestions:

    • Send a plaintext email (less likely to be considered spam – and more comfortable for many users)
    • If you use HTML, always include a plaintext version
    • Improve the text-to-links/html ratio.
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