Python 2.7.5
CentOS Linux release 7.9.2009 (Core)

# -*- coding:utf-8 -*-
#!/usr/bin/env python
# filename: xmail.py

"""
python xmail.py "all-sink-cnt-names.txt"    "xx全部souce connector名称"       "xys721@163.com"
python xmail.py  保存邮件内容的文件名          邮件标题                          收件人
"""

import sys
import os
import json
# from datetime import datetime, timedelta
import datetime

from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr
import smtplib

# print sys.argv[1]

# ON open mail send otherwise OFF
MAIL_SWITCH = "ON"


def xsend_mail(subject, mail_msg, rec="xys721@163.com"):
    if MAIL_SWITCH == "OFF":
        return

    def _format_addr(s):
        name, addr = parseaddr(s)
        return formataddr((Header(name, 'utf-8').encode(), addr))

    to_addr = rec

    from_addr = 'qstest@163.com'
    password = 'qstest2019'
    smtp_server = 'smtp.163.com'

    msg = MIMEText(mail_msg, 'plain', 'utf-8')
    msg['From'] = _format_addr('<%s>' % from_addr)
    msg['To'] = _format_addr('<%s>' % to_addr)
    msg['Subject'] = Header(subject, 'utf-8').encode()

    server = smtplib.SMTP_SSL(smtp_server, 465)
    # server.set_debuglevel(1)
    server.login(from_addr, password)
    server.sendmail(from_addr, to_addr.split(','), msg.as_string())
    server.quit()

with open(sys.argv[1], 'r') as fb:
    xmail_content = fb.read()

xsend_mail(sys.argv[2], xmail_content, sys.argv[3])

echo "hello-world 邮件测试内容" > all-sink-cnt-names.txt
python xmail.py "all-sink-cnt-names.txt"    "xx全部souce connector名称"       "xys721@163.com"