Python发送smtp邮件带附件
import smtplib
from email.message import EmailMessage
from email.headerregistry import Address, Group
import email.policy
import mimetypes
import base64
class SendEmail(object):
"""
python3 发送邮件类
格式： html
可发送多个附件
"""
def __init__(self, smtp_server, smtp_user, smtp_passwd, sender, recipient):
# 发送邮件服务器,常用smtp.163.com
self.smtp_server = smtp_server
# 发送邮件的账号
self.smtp_user = smtp_user
# 发送账号的客户端授权码
self.smtp_passwd = smtp_passwd
# 发件人
self.sender = sender
# 收件人
self.recipient = recipient
# Use utf-8 encoding for headers. SMTP servers must support the SMTPUTF8 extension
# https://docs.python.org/3.6/library/email.policy.html
self.msg = EmailMessage(email.policy.SMTPUTF8)
def set_header_content(self, subject, content):
"""
设置邮件头和内容
:param subject: 邮件题头
:param content: 邮件内容
:return:
"""
self.msg['From'] = self.sender
self.msg['To'] = self.recipient
self.msg['Subject'] = subject
self.msg.set_content(content, subtype="html")
def set_accessories(self, path_list: list):
"""
添加附件
:param path_list: [{"path": ""}, {"name": ""}]
:return:
"""
for path_dict in path_list:
filename = path_dict['path']
name = path_dict['name']
ctype, encoding = mimetypes.guess_type(filename)
if ctype is None or encoding is not None:
# No guess could be made, or the file is encoded (compressed), so
# use a generic bag-of-bits type.
ctype = 'application/octet-stream'
maintype, subtype = ctype.split('/', 1)
with open(filename, 'rb') as fp:
self.msg.add_attachment(fp.read(), maintype, subtype, filename=self.dd_b64(name))
def send_email(self):
"""
发送邮件
:return:
"""
with smtplib.SMTP_SSL(self.smtp_server) as smtp:
# HELO向服务器标志用户身份
smtp.ehlo_or_helo_if_needed()
# 登录邮箱服务器
smtp.login(self.smtp_user, self.smtp_passwd)
print("Email:{}==>{}".format(self.sender, self.recipient))
smtp.send_message(self.msg)
print("Sent succeed!")
@staticmethod
def dd_b64(param):
"""
对邮件header及附件的文件名进行两次base64编码，防止outlook中乱码。
email库源码中先对邮件进行一次base64解码然后组装邮件
:param param: 需要防止乱码的参数
:return:
"""
param = '=?utf-8?b?' + base64.b64encode(param.encode('UTF-8')).decode() + '?='
param = '=?utf-8?b?' + base64.b64encode(param.encode('UTF-8')).decode() + '?='
return param
if __name__ == '__main__':
smtp_server = "smtp.xxxx.cn"
smtp_user = "xxx@xxxx.cn" # 发送邮件的账号
smtp_passwd = "xxxxxx@" # 发送账号的客户端授权码
# 直接用字符串也行，这里为了方便使用 display name, 相当于 "测试-发送者 <a@163.com>"
# 发送号码要与登录号码一致
sender = Address("测试-发送者", "mail", "iccat.cn")
# 发送多个人
recipient = Group(addresses=(Address("测试-接受者", "xxxxx", "qq.com"), Address("测试-接受者", "xxxx", "xxxxxx.top")))
subject = "测试专用测试附件"
content = """
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
body {
font-family: Arial, sans-serif;
}
.table-container {
max-width:500px;
}
.table-container td {
padding: 8px;
text-align: center;
border-bottom: 1px solid #ddd;
}
.table-container th {
background-color: #f2f2f2;
text-align: center;
width: 5em;
}
table {
width: 100%;
margin-right: 20px;
border-collapse: collapse;
text-align: center;
}
</style>
</head>
<body>
<h2>两率指标计算结果如下：</h2>
<div class="table-container">
<table>
<tr>
<th>日期</th>
<td>20231206</td>
</tr>
</table>
<table>
<tr>
<th>指标</th>
<td>流动性覆盖率（LCR）%</td>
<td>净稳定资金率（NSFR）%</td>
</tr>
</table>
<table>
<tr>
<th>指标限额</th>
<td style="text-align:center;">200%</td>
</tr>
</table>
<table>
<tr>
<th>指标值</th>
<td>80</td>
<td>899</td>
</tr>
</table>
</div>
<P>请及时处理。</p>
</body>
</html>
"""
path_list = [{"path": r"./测试文件123abc.txt",
"name": "测试文件123abc.txt"},{"path": r"./生成汇款单测试.mp4",
"name": "生成汇款单测试.mp4"}]
sd = SendEmail(smtp_server, smtp_user, smtp_passwd, sender, recipient) # 创建对象
sd.set_header_content(subject, content) # 设置题头和内容
sd.set_accessories(path_list) # 添加附件
sd.send_email() # 发送邮件
