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POpython smtplib using gmail: messages with a body longer than about 35 characters are never received
 

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  1. POpython smtplib using gmail: messages with a body longer than about 35 characters are never received
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    <p>I have the strangest bug. I am using smtplib to send email from a gmail account. Every time that I run the script I see the message show up in the "sent" tab of the gmail account that I am using to send. However sometimes don't get the message on the receiving end. </p> <p>I have noticed a correlation between the length of the body of the message and whether I receive it. A message of "foo" gets through every time and my desired message, which is about 200 characters long never does. I tried sending messages with body lengths between zero and 60. Both times I tried this all 60 show up in the 'sent' folder of the sending gmail account, but only the following show up in the receiving email account:</p> <p><img src="https://i.stack.imgur.com/ib8zq.png" alt="enter image description here"></p> <p>Here is the code I use to send the messages:</p> <pre><code> for i in range(100): mail('someaddress@gmail.com','testing limit',str(i) + "a"*i) </code></pre> <p>And here is the mail function:</p> <pre><code>def mail(to, subject, text, attach=None): """Sends an email, formatted as HTML to list of senders with an optional attachment. Specifically, the 'to' argument must be a comma seperated list of email addresses. 'subject' and 'text' are what appear in the email subject and body, respectively and 'attach' is a path to an attachment. """ msg = MIMEMultipart() # build the email header msg['From'] = 'A Concerned Robot' msg['To'] = to msg['Subject'] = subject # attach our body text as html msg.attach(MIMEText(text,'html')) # attach the attachment if its there part = MIMEBase('application', 'octet-stream') if attach is not None: part.set_payload(open(attach, 'rb').read()) Encoders.encode_base64(part) part.add_header('Content-Disposition', 'attachment; filename="%s"' % os.path.basename(attach)) msg.attach(part) # open up a line with the server mailServer = smtplib.SMTP("smtp.gmail.com", 587) mailServer.ehlo() mailServer.starttls() mailServer.ehlo() # login, send email, logout mailServer.login(conf.user, conf.pw) mailServer.sendmail(conf.user, to, msg.as_string()) mailServer.close() </code></pre>
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    1. USBenjie Holson
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      1. POpython smtplib using gmail: messages with a body longer than about 35 characters are never received
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      1. POpython smtplib using gmail: messages with a body longer than about 35 characters are never received
      1. USJoe Internet
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    1. COI must say this is an odd bug. I have been using the smtplib module the past few days and never ran into this issue... However I just ran your example with the same results you came up with. I did try a few things like striping out the attachments and sending plain text all with luck. +1 for a strange and irritating bug.
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      1. POpython smtplib using gmail: messages with a body longer than about 35 characters are never received
      1. USAdam Lewis
    2. COOn a side note: If you are using a free Google account, I believe that you're limited to 500 emails / 24 hour period. So when testing you might want to ramp down the number of messages you send.
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      1. POpython smtplib using gmail: messages with a body longer than about 35 characters are never received
      1. USAdam Lewis
 

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