最近看到了一个防止DDOS的python脚本，不过其邮件通知功能一直不成功，而最近又在学习python 。打开源码查看，发现有调用smtplib 进行邮件发送 。不过因为里面有调用配置文件参数，略有点复杂。先从网上查了查smtplib的用法 。通过smtplib进行gmail发送代码示例：

 1#!/usr/bin/env python
 2import smtplib
 3import sys
 4import email.mime.text
 5# my test mail
 6mail_username='[email protected]'
 7mail_password='test'
 8from_addr = mail_username
 9to_addrs=('[email protected]')
10# HOST & PORT
11HOST = 'smtp.gmail.com'
12PORT = 25
13# Create SMTP Object
14smtp = smtplib.SMTP()
15print 'connecting ...'
16# show the debug log
17smtp.set_debuglevel(1)
18# connet
19try:
20    print smtp.connect(HOST,PORT)
21except:
22    print 'CONNECT ERROR ****'
23# gmail uses ssl
24smtp.starttls()
25# login with username & password
26try:
27    print 'loginning ...'
28    smtp.login(mail_username,mail_password)
29except:
30    print 'LOGIN ERROR ****'
31# fill content with MIMEText's object
32msg = email.mime.text.MIMEText('Hi ,this is a test mail')
33msg['From'] = from_addr
34msg['To'] = ';'.join(to_addrs)
35msg['Subject']='hello , today is a special day'
36print msg.as_string()
37smtp.sendmail(from_addr,to_addrs,msg.as_string())
38smtp.quit()

代码挺简单，使用时，只需要把用户、密码、收件人、主题及内容更换即可。