服务器不支持smtp,服务器不支持SMTP AUTH扩展

使用python我想从我的应用程序发送电子邮件,但它显示错误

SMTP AUTH extension not supported by server

该计划的代码,

import smtplib

from email.MIMEMultipart import MIMEMultipart

from email.MIMEText import MIMEText

fromaddr = "test1@example.com"

toaddr = "test2@example.com"

msg = MIMEMultipart()

msg['From'] = fromaddr

msg['To'] = toaddr

msg['Subject'] = "Test Mail"

body = "Test mail from python"

msg.attach(MIMEText(body, 'plain'))

server = smtplib.SMTP('smtp.example.com', 25)

server.ehlo()

server.starttls()

server.ehlo()

server.login(fromaddr, "password")

text = msg.as_string()

server.sendmail(fromaddr, toaddr, text)

server.quit()

Telnet输出:

ehlo test1.example.com

250-hidden

250-HELP

250-SIZE 104857600

250-ENHANCEDSTATUSCODES

250-8BITMIME

250-STARTTLS

250 OK

我需要从应用程序进行身份验证和发送邮件.