我正在尝试将图像显示为用Python发送的邮件的一部分。 Python文档上有一个不起作用的示例。
from datetime import datetime
import sys
import smtplib
from email.message import EmailMessage
from email.headerregistry import Address
from email.utils import make_msgid
from email.mime.image import MIMEImage
attachment = '/user/file/test.png'
import email.policy
msg = EmailMessage()
msg['To'] = Address("Srujan", 'myemail@example.com')
msg['From'] = Address("Srujan", 'myemail@example.com')
msg['Subject'] = "Nice message goes with it "+str(datetime.now())
id = make_msgid()
msg.set_type('text/html')
msg.set_content(" This is the Data Message that we want to send")
html_msg = "<br> <b><u> This is the Text .... </u></b><br> <img src='cid:{image_id}' />".format(image_id=id[1:-1])
msg.add_alternative(html_msg, subtype="html")
image_data = open(attachment, "rb")
image_mime = MIMEImage(image_data.read())
image_data.close()
msg.add_attachment(image_mime, cid=id, filename = "myown.png" ,)
try:
with smtplib.SMTP('example.com') as s:
s.ehlo()
s.starttls()
s.ehlo()
s.send_message(msg)
s.close()
print("Email sent!")
except:
print("Unable to send the email. Error: ", sys.exc_info()[0])
raise
我注意到最后一部分是message/rfc822
,然后包含image/png
。To: Srujan <"myemail@example.com"> From: Srujan <"myemail@example.com"> Subject: Nice message goes with it 2016-01-21 17:39:23.642762 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3463325241650937591==" --===============3463325241650937591== Content-Type: multipart/alternative; boundary="===============0739224896516732414==" --===============0739224896516732414== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit This is the Data Message that we want to send --===============0739224896516732414== Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 7bit MIME-Version: 1.0 <br> <b><u> This is the Text .... </u></b><br> <img src='cid:20160122013923.64205.76661' /> --===============0739224896516732414==-- --===============3463325241650937591== Content-Type: message/rfc822 Content-Transfer-Encoding: 8bit Content-Disposition: attachment; filename="myown.png" Content-ID: <20160122013923.64205.76661> MIME-Version: 1.0 Content-Type: image/png MIME-Version: 1.0 Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAAyAAAAJYCAIAAAAVFBUnAAAABmJLR0QA/wD/AP+gvaeTAAAgAElE QVR4nOzdd2BUVfYH8HNfmZJAChAEQ1FAqoKgCAsWLEgTG4gKP11FQNG1AauIgGBXVhRUsCK4i6gI
现在,附件消息具有两个内容类型值。电子邮件仅包含文本,没有图像。
我已经使用
MultiPart
类成功完成了此任务,但希望通过EmailMessage
实现。
最佳答案
遗憾的是,关于此主题的Python文档不完整/错误。我想做同样的事情,遇到同样的问题(附件有两种内容类型)
通过使用attach()
方法而不是add_attachment()
对象上的EmailMessage
解决了该问题。唯一的警告是,您必须先将EmailMessage
转换为multipart/mixed
类型。一个例子:
from smtplib import SMTP
from email.message import EmailMessage
from email.mime.text import MIMEText
from email.headerregistry import Address
from ssl import SSLContext, PROTOCOL_TLSv1_2
# Creating and populating email data:
msg = EmailMessage()
msg['From'] = Address(display_name='Recipient', addr_spec='rcpt@example.org')
msg['To'] = Address(display_name='Sender', addr_spec='sender@example.org')
msg['Subject'] = 'An email for you'
msg.set_content('This should be in the email body')
# It is possible to use msg.add_alternative() to add HTML content too
# Attaching content:
att = MIMEText('This should be in an attached file') # Or use MIMEImage, etc
# The following line is to control the filename of the attached file
att.add_header('Content-Disposition', 'attachment', filename='attachment.txt')
msg.make_mixed() # This converts the message to multipart/mixed
msg.attach(att) # Don't forget to convert the message to multipart first!
# Sending the email:
with SMTP(host='smtp.example.org', port=587) as smtp_server:
try:
# You can choose SSL/TLS encryption protocol to use as shown
# or just call starttls() without parameters
smtp_server.starttls(context=SSLContext(PROTOCOL_TLSv1_2))
smtp_server.login(user='user@smtp.example.org', password='password')
smtp_server.send_message(msg)
except Exception as e:
print('Error sending email. Details: {} - {}'.format(e.__class__, e))
关于python-3.x - 带有图像的Python 3 EmailMessage html消息,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34937694/