python连接exchange发送邮件代码调试案例

import smtplib
import email
import os

username = "user@gmail.com"
passwd = "password"

def mail(to, subject, text, attach):
   msg = MIMEMultipart()

   msg['From'] = username
   msg['To'] = to
   msg['Subject'] = subject

   msg.attach(MIMEText(text)) 

   part = MIMEBase('application', 'octet-stream')
   part.set_payload(open(attach, 'rb').read())
   Encoders.encode_base64(part)
   part.add_header('Content-Disposition',
           'attachment; filename="%s"' % os.path.basename(attach))
   msg.attach(part)

   server = smtplib.SMTP("smtp.gmail.com", 495)
   server.ehlo()
   server.starttls()
   server.ehlo()
   server.login(username, passwd)
   server.sendmail(username, to, msg.as_string())
   server.close()

mail("you", "hi", "hi", "webcam.jpg")