Question

我查了很多关于它的帖子，但仍无法找到解决方案。我能够发送包含嵌入图片的电子邮件，但电子邮件还包含这些图片作为附件，我只需要嵌入图片。我尝试过很多变种，有'相关'类型，'混合'。还有Python程序中的html代码（不是在Jinja2模板中），但我无法使其工作。

list_of_images = get_graphs() #list with file names

# here if I put "related" - images are sent ONLY as attachments 
mail = MIMEMultipart() 
for filename in list_of_images:
    fp = open(filename, 'rb')
    msg_img = MIMEImage(fp.read())
    fp.close()
    msg_img.add_header('Content-ID', '<{}>'.format(filename))
    msg_img.add_header('Content-Disposition', 'inline', filename=filename)
    mail.attach(msg_img)
#Jinja2 for html template
env = Environment(loader=FileSystemLoader('.'))
main = env.get_template('images.tpl')
html = main.render(pictures=list_of_images)
msgHtml = MIMEText(html, 'html')
mail.attach(msgHtml)

mail['Subject'] = "TEST"
mail['From'] = "email@addr"
mail['To'] = "email@addr"
s = smtplib.SMTP("localhost")
s.sendmail(mail['From'], "email@addr", mail.as_string())
s.quit()

jinja模板：

<html>
<body>
{% for image in pictures %}
<img src="cid:{{image}}">
{% endfor %}
</body>
</html>

Answer 1

首先附加HTML或指定＆＃34; start＆＃34; multipart / related内容类型的参数。

引用RFC2387：

如果给定，则start参数是化合物的content-ID 对象＆＃34; root＆＃34;。如果不存在＆＃34; root＆＃34;是第一个身体部位 Multipart / Related实体。＆＃34; root＆＃34;是元素申请流程首先。

因此，在您的示例中，您可以进行这些更改以标记根元素：

mail = MIMEMultipart("related", start="<HTML>", type="text/html") 
...
msgHtml.add_header('Content-ID', '<HTML>')

至少在Google Mail中，要么首先放置HTML，要么添加＆＃34; start＆＃34;参数允许图像以内联方式显示。

完整示例：

from jinja2 import Template
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.image import MIMEImage
from glob import glob
from getpass import getpass
import smtplib

me = 'example@gmail.com'
you= 'example@gmail.com'
auth = ('example@gmail.com', getpass())
mx=  ('smtp.gmail.com', 465)

list_of_images = glob('*.jpg')

mail = MIMEMultipart("related")
#Jinja2 for html template
main = Template('''
    <html><body>
    {% for image in pictures %}<img src="cid:{{image}}">{% endfor %}
    </body></html>''')
html = main.render(pictures=list_of_images)
msgHtml = MIMEText(html, 'html')
mail.attach(msgHtml)

for filename in list_of_images:
    fp = open(filename, 'rb')
    msg_img = MIMEImage(fp.read())
    fp.close()
    msg_img.add_header('Content-ID', '<{}>'.format(filename))
    msg_img.add_header('Content-Disposition', 'inline', filename=filename)
    mail.attach(msg_img)

mail['Subject'] = "TEST"
mail['From'] = me
mail['To'] = you

s = smtplib.SMTP_SSL(*mx)
s.login(*auth)
s.sendmail(me, you, mail.as_string())
s.quit()

Python：Multipart html电子邮件与嵌入式图像和附件一起发送

1 个答案: