如何在python中使用MIME发送电子邮件时向雷鸟发送附件？

Question

我正在尝试使用MIME从Python发送电子邮件，电子邮件工作得很好，附件也显示在web电子邮件上，但不会出现在像雷鸟这样的电子邮件客户端。

这是我写的代码

#!/usr/bin/python
import smtplib
from smtplib import SMTPException
import base64

filename = "ticketexport.csv"

fo = open(filename, "rb")
filecontent = fo.read()
encodedcontent = base64.b64encode(filecontent) 

sender = 'erp@at.biz'
receivers = ["shravya@at.biz"]

marker = "AUNIQUEMARKER"

body ="""
LO CUSTOMER SUPPORT TICKETS.
"""

part1 = """From: AT <erp@atc.erp>
To: SS<shravya@at.biz>
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary=%s
--%s
""" % (marker, marker)


part2 = """Content-Type: text/plain
Content-Transfer-Encoding:8bit

%s
--%s
""" % (body,marker)

# Define the attachment section
part3 = """Content-Type: multipart/mixed; name=\"%s\"
Content-Transfer-Encoding:base64
Content-Disposition: attachment; filename=%s

%s
--%s--
""" %(filename, filename, encodedcontent, marker)
message = part1 + part2 + part3

try:
   smtpObj = smtplib.SMTP_SSL('smtp.gmail.com', 465)
   smtpObj.login('erp@at.biz', 'jklO4d')
   smtpObj.sendmail(sender, receivers, message)         
   print "Successfully sent email"
except SMTPException as e:
   print(e)
   print "Error: unable to send email"

任何帮助都意味着很多。我离这个太近了。

Answer 1

Close -- MIME编码规则相当挑剔。

在part1中，在Content-Type和第一个标记之间需要有一个空行。

在part3中，Content-Type应该是application/octet-stream。该部分不是多部分的。