python3 发送邮件功能

# 发送邮件
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText


def send_email():
    fromaddr = "from1@your_email.com" # 你的发件邮箱
    toaddr = "to1@your_email.com" # 目标邮箱
    msg = MIMEMultipart()
    msg['From'] = fromaddr
    msg['To'] = toaddr
    msg['Subject'] = "SUBJECT OF THE MAIL"

    body = "YOUR MESSAGE HERE"
    msg.attach(MIMEText(body, 'plain'))

    server = smtplib.SMTP('smtp.exmail.qq.com', 25) # 默认端口25
    server.starttls()
    server.login(fromaddr, "xxxx密码")
    text = msg.as_string()
    server.sendmail(fromaddr, toaddr, text)
    server.quit()


if __name__ == '__main__':
    print('start sending email')
    send_email()
    print('end...')

# 发送邮件
import smtplib
from email import encoders
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText


def send_email(from_email, pwd, target_email_list=[], attachment_file_list=[]):
    """
    单独发送邮件
    create on 2018-11-14
    :param from_email: 源邮箱
    :param pwd: 源邮箱密码
    :param target_email_list:  目标邮件列表
    :param attachment_file_list:  附件路径列表
    :return: void
    """
    if len(target_email_list) <= 0:
        print('ERR: 目标邮件列表为空 -> 退出')
        return

    for target_email in target_email_list:
        print('sending to ' + target_email)
        msg = MIMEMultipart()
        msg['From'] = from_email
        msg['To'] = target_email
        msg['Subject'] = "更新"

        body = '''尊敬的客户，
    你好，请查收文件。
谢谢！
        '''
        msg.attach(MIMEText(body, 'plain'))

        for file_path in attachment_file_list:
            filename = str(file_path).split('\\')[-1]
            print("file_path " + file_path + " filename: " + filename)
            attachment = open(file_path, "rb")

            part = MIMEBase('application', 'octet-stream')
            part.set_payload(attachment.read())
            encoders.encode_base64(part)
            part.add_header('Content-Disposition', "attachment; filename= %s" % filename)

            msg.attach(part)

            server = smtplib.SMTP('smtp.exmail.qq.com', 25)
            server.starttls()
            server.login(from_email, pwd)
            text = msg.as_string()
            server.sendmail(from_email, target_email, text)
            server.quit()


if __name__ == '__main__':
    print('start sending email')
    send_email(from_email="your_email.com",
               pwd="密码",
               target_email_list=["target1@foxmail.com", "target2@qq.com"],
               attachment_file_list=[
                   r"E:\your_path.rar"])
    print('end...')