Python中是如何发送邮件的，可以参考如下地址，很详细的：
python3之模块SMTP协议客户端与email邮件MIME对象 - Py.qi - 博客园
1.采用Django中的EmailMultiAlternatives发送html邮件，使用MIMEImage嵌入图片到邮件中。
from email.mime.image import MIMEImagefrom django.core.mail import EmailMultiAlternatives#拼接csscontent_html = '''<!DOCTYPE html><html><meta charset="UTF-8"><head><title>Vinta</title><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=2 user-scalable = yes"><style>table {border-top: 1px solid #ccc;border-left: 1px solid #ccc;}table td, table th {border-bottom: 1px solid #ccc;border-right: 1px solid #ccc;padding: 3px 5px;}table th {background-color: #f1f1f1;border-bottom: 2px solid #ccc;text-align: center;}</style></head><body><p>第一张图片：</p><img src="http://127.0.0.1:8000/auditImg/2024/423f427f652645c2857fde98ecfed101.png" style="max-width:100%;" contenteditable="false"/><table border="0" width="100%" cellpadding="0" cellspacing="0”><tbody><tr><th>test1</th><th>test2</th><th>test3</th><th>test4</th></tr><tr><td>hhhhh1</td><td>hhhhh1</td><td>hhhhh1</td><td>hhhhh1</td></tr></tbody></table><p>第二张图片:</p><img src="http://127.0.0.1:8000/auditImg/auditImg/2024/e31b5d429e7b4a8793052eb6879f135c.png" style="max-width:100%;" contenteditable="false"/></body></html>'''def sendEmail(subject,content_html,from_email,to,cc)msg = EmailMultiAlternatives(subject = subject,body = content_html, from_email = from_email, to = to, cc = cc)msg.attach_alternative(content_html, "text/html")#处理html中的图片#由于保存的图片地址是http://127.0.0.1:8000/auditImg/1021/2322211.png#真实的图片保存路径为static/img/detail/1021/2322211.png#所以需要转换一下路径，拿到图片地址 content_html =content_html.replace('src="http://127.0.0.1:8000/auditImg/','src="cid:')imgList = re.findall('src="cid:(.*?)"', html_content, re.S)print('imgList_____',imgList)for img in imgList:imgPath = os.path.join('static/img/detail',img)print(imgPath)image = add_img(imgPath,img)# msg.attach(image)try:msg.send()except Exception as e:print('send_mail exec error'+str(e))def add_img(src, img_id):with open(src, 'rb') as f:msg_image = MIMEImage(f.read())msg_image.add_header('Content-ID', img_id)return msg_image
参考链接：
django中发送html邮件以及html中含有图片的邮件_随灬亦-CSDN博客
2.采用Python发送html邮件，嵌入图片，并添加附件。
import smtplibfrom email.mime.text import MIMETextfrom email.mime.image import MIMEImagefrom email.mime.application import MIMEApplicationfrom email.mime.multipart import MIMEMultipart sender = 'Xiaoqian_Ma@' #发送邮箱receivers = ['Xiaoqian_Ma@'] #接受邮箱message = MIMEMultipart('related')#采用related定义内嵌资源的邮件体message['Subject'] = '邮件标题。。。。。'message['From'] = sendermessage['To'] = ','.join(receivers)#html内容#拼接csshtml_css_head = '''<!DOCTYPE html><html><meta charset="UTF-8"><head><style>table {border-top: 1px solid #ccc;border-left: 1px solid #ccc;}table td, table th {border-bottom: 1px solid #ccc;border-right: 1px solid #ccc;padding: 3px 5px;}table th {background-color: #f1f1f1;border-bottom: 2px solid #ccc;text-align: center;}</style></head><body><div id="content">'''html_css_footer = '''</div></body></html>'''mail_msg = """<p>Python 邮件发送测试...</p><p><a href="">这是一个链接</a></p><p>图片演示：</p><p><img src="cid:image1"></p><p>表格演示：</p><table><tr><th>第一列</th><th>第二列</th><th>第三列</th><th>第四列</th></tr><tr><td>h1</td><td>h2</td><td>h3</td><td>h4</td></tr><tr><td>d1</td><td>d2</td><td>d3</td><td>d4</td></tr></table>"""mail_msg = html_css_head + mail_msg + html_css_footermsgtext = MIMEText(mail_msg,_subtype='html',_charset='utf-8') #_subtype有plain,html等格式，避免使用错误message.attach(msgtext)# 指定图片为当前目录fp = open('img.png', 'rb')msgImage = MIMEImage(fp.read())fp.close()# 定义图片 ID，在 HTML 文本中引用msgImage.add_header('Content-ID', '<image1>')message.attach(msgImage)#添加附件filename = 'file.xlsx'attachment='/Users/mac/Desktop/file.xlsx'att1 = MIMEApplication(open(attachment, 'rb').read())att1.add_header('Content-Disposition', 'attachment', filename=('gbk', '', filename)) #注意：此处basename要转换为gbk编码，否则中文会有乱码。 message.attach(att1)#发送邮件try:smtpObj = smtplib.SMTP('mail host',25)smtpObj.login("用户名","密码")smtpObj.sendmail(sender, receivers, message.as_string())print("邮件发送成功")except smtplib.SMTPException:print("Error: 无法发送邮件")
发出的邮件如下：
