两台机器跑一样的python，结果却不同，我应该如何下手？

#!/usr/bin/env python

import smtplib

import sys

from email.mime.multipart import MIMEMultipart

from email.mime.text import MIMEText

from email.mime.application import MIMEApplication



mailto_list=["开发人员们的邮箱"]

mail_host="公司的邮箱地址"

mail_user="发送人"

mail_pass="这里是密码"

mail_postfix="公司的postfix"

mail_sender="公司的报警专用邮箱"



def send_mail(sub, content):

    me=mail_sender

    msg = MIMEMultipart()

    msg['Subject'] = sub

    msg['From'] = me

    msg['To'] = ";".join(mailto_list)



    content1 = MIMEText(str(content), 'plain', 'utf-8')

    msg.attach(content1)



    try:

        s = smtplib.SMTP()

        s.connect(mail_host)

        s.login(mail_user,mail_pass)

        s.sendmail(me, mailto_list, msg.as_string())

        print('send sucess\n')

        s.close()

    except Exception as e: print(str(e))

if __name__=='__main__':

    send_mail(*sys.argv[1:])