我是Python的新手。我想发送基于HTML的电子邮件，在电子邮件正文的左上方嵌入公司徽标。
使用以下代码，该电子邮件绝对有效，但不再附加嵌入式图像。不知道我在哪里做错了。任何人都可以在这里帮助我。
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.MIMEImage import MIMEImage
msg = MIMEMultipart('alternative')
msg['Subject'] = "My text dated %s" % (today)
msg['From'] = sender
msg['To'] = receiver
html = """\
<html>
<head></head>
<body>
<img src="cid:image1" alt="Logo" style="width:250px;height:50px;"><br>
<p><h4 style="font-size:15px;">Some Text.</h4></p>
</body>
</html>
"""
# The image file is in the same directory as the script
fp = open('logo.png', 'rb')
msgImage = MIMEImage(fp.read())
fp.close()
msgImage.add_header('Content-ID', '<image1>')
msg.attach(msgImage)
part2 = MIMEText(html, 'html')
msg.attach(part2)
mailsrv = smtplib.SMTP('localhost')
mailsrv.sendmail(sender, receiver, msg.as_string())
mailsrv.quit()
我发现了问题。这是供您参考的更新代码。
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.MIMEImage import MIMEImage
msg = MIMEMultipart('related')
msg['Subject'] = "My text dated %s" % (today)
msg['From'] = sender
msg['To'] = receiver
html = """\
<html>
<head></head>
<body>
<img src="cid:image1" alt="Logo" style="width:250px;height:50px;"><br>
<p><h4 style="font-size:15px;">Some Text.</h4></p>
</body>
</html>
"""
# Record the MIME types of text/html.
part2 = MIMEText(html, 'html')
# Attach parts into message container.
msg.attach(part2)
# This example assumes the image is in the current directory
fp = open('logo.png', 'rb')
msgImage = MIMEImage(fp.read())
fp.close()
# Define the image's ID as referenced above
msgImage.add_header('Content-ID', '<image1>')
msg.attach(msgImage)
# Send the message via local SMTP server.
mailsrv = smtplib.SMTP('localhost')
mailsrv.sendmail(sender, receiver, msg.as_string())
mailsrv.quit()