python操作邮箱发送邮件和接收邮件

首先，用到的模块

import logging
import traceback
from email.mime.application import MIMEApplication
import os
import smtplib
from email.mime.multipart import MIMEMultipart
from email.utils import formataddr
from email.mime.text import MIMEText
from poplib import POP3
from email.header import decode_header
from email.parser import Parser
from email.utils import parseaddr

发送带附件的邮件

def send(email_title, content, filepath, receiver_filename, receiver, smtpserver='smtp.mxhichina.com',nick_name='开发者账号', sender, my_pass, del_file=True):print("开始发送邮件........")try:# 创建一个带附件的实例msg = MIMEMultipart()msg['From'] = formataddr([nick_name, sender])msg['To'] = ','.join(receiver)msg['Subject'] = email_titlemsg.attach(MIMEText(content, 'plain', 'utf-8'))  # 邮件正文内容xlsxpart = MIMEApplication(open(filepath, 'rb').read())xlsxpart.add_header('Content-Disposition', 'attachment', filename=('gbk', '', receiver_filename))msg.attach(xlsxpart)# 登陆且发送邮件server = smtplib.SMTP_SSL(smtpserver, 465)server.login(sender, my_pass)server.sendmail(sender, receiver, msg.as_string())server.quit()print("邮件发送成功")if del_file == True:if os.path.exists(filepath):os.remove(filepath)print("文件已删除")else:print("没有文件可以供删除")except Exception as e:print(e)return "ok"

发送不带附件的html格式的邮件

def send_no_path(email_title, content, receiver, smtpserver, nick_name,sender, my_pass):"""@auth 发送不带附件的html格式的邮件"""# 创建一个不带附件的实例msg = MIMEText(content, "html", 'utf-8')# 邮件标题msg['Subject'] = email_title# 发送人/收件人/抄送人msg['From'] = formataddr([nick_name, sender])msg['To'] = ','.join(receiver)smtpobj = smtplib.SMTP_SSL(smtpserver, 465)try:# 连接到服务器smtpobj.connect(smtpserver, 465)# 登陆smtpobj.login(sender, my_pass)# 发送smtpobj.sendmail(sender, receiver, msg.as_string())except Exception:print('ERROR:邮件发送错误')finally:smtpobj.quit()

接收邮件内容

class MailFileDownload:"""@author： @date：2021/11/17通过主题或者发件人为标签自动获取最新一封邮件的正文和附件Attributes:target_subject：要获取的邮件主题target_from：要获取的邮件的发件人file_download_path：附件下载路径server：邮箱服务器user：邮箱登陆账号password：邮箱登陆密码实用方法：mail_text：获取邮件正文，返回字符串形式的正文mail_file：下载邮件附件到指定路径，返回Nonemail_file_text：获取邮件附件和正文，返回正文"""logging.basicConfig(level=logging.INFO, format="$asctime - $levelname - $message", style='$')def __init__(self, target_subject=None, target_from=None, file_download_path=None, server,user, password):self.logger = logging.getLogger('email')self.target_subject = target_subjectself.target_from = target_fromself.p = POP3(server)self.logger.info(self.p.getwelcome().decode('utf-8'))self.p.user(user)self.p.pass_(password)self.num = len(self.p.list()[1])  # 获取邮件位置的列表self.logger.info(f'共有{self.num}份邮件')if file_download_path[-1] == '/':self.file_download_path = file_download_pathelse:self.file_download_path = file_download_path + '/'# self.mail = Parser().parsestr(b'\r\n'.join(text_).decode('utf-8', 'ignore'))def __target_mail(self):"""获取指定的邮件信息"""for i in range(self.num, 0, -1):# 获取邮件信息，返回元组，第二个值为邮件信息text_ = self.p.retr(i)[1]# 导入为mail格式mail = Parser().parsestr(b'\r\n'.join(text_).decode('utf-8', 'ignore'))# 比较主题是否是目标主题subject = mail.get('Subject')if subject:# 返回元组，索引0为正文内容，索引1为编码dh = decode_header(subject)result = dh[0][0].decode(dh[0][1])from_ = mail.get('From')if from_:addr = parseaddr(from_)[1]if self.target_from == addr or self.target_subject == result:breakelse:self.logger.warning('未找到指定主题或发件人的邮件，请检查参数')exit()return result, addr, mail@staticmethoddef guess_charset(msg):"""定义函数，获取邮件正文的编码方式"""charset = msg.get_charset()if charset is None:content_type = msg.get('Content-Type', '').lower()pos = content_type.find('charset=')if pos >= 0:charset = content_type[pos + 8:].strip()return charsetdef __mail_text(self, mail):for part in mail.walk():charset = self.guess_charset(part)content_type = part.get_content_type()if content_type == 'text/plain':content = part.get_payload(decode=True).decode(charset)breakelse:self.logger.warning('该邮件缺失正文或正文格式不是txt，请检查邮件')content = Nonereturn contentdef __mail_file(self, mail):"""下载邮件附件"""for part in mail.walk():# 获取附件名称filename = part.get_filename()if filename:# 附件名称是乱码，用decode_header解码一下filename = decode_header(filename)filename = filename[0][0].decode(filename[0][1])data = part.get_payload(decode=True)  # 取出文件内容with open(os.path.join(self.file_download_path, filename), 'wb') as fp:fp.write(data)self.logger.info(f'{filename}下载完成')def mail_text(self):"""获取邮件正文,目前只支持txt格式的，html格式的暂不支持:return: content:rtype:"""try:result_, addr_, mail_ = self.__target_mail()  # 获取邮件标题、发件人、邮箱对象content = self.__mail_text(mail_)return contentexcept Exception:traceback.print_exc()finally:self.p.quit()def mail_file(self):"""获取邮件附件:return::rtype:"""try:result_, addr_, mail_ = self.__target_mail()  # 获取邮件标题、发件人、邮箱对象self.__mail_file(mail_)except Exception:traceback.print_exc()finally:self.p.quit()def mail_file_text(self):"""获取邮件正文和附件:return: content:rtype: str"""try:result_, addr_, mail_ = self.__target_mail()  # 获取邮件标题、发件人、邮箱对象self.__mail_file(mail_)content = self.__mail_text(mail_)return contentexcept Exception:traceback.print_exc()finally:self.p.quit()

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