python 邮件发送

环境：python2.7

#coding:utf-8
from __future__ import unicode_literals
__author__ = 'crista'

import smtplib
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.header import Header
import ConfigParser

#message :正文内容,数据类型为string
#files：所添加附件绝对路径加名字.文件类型，数据类型为list

def send_file(msg,files):
     ##添加附件部分
        for f in files :
            attr = MIMEApplication(open(f,'rb').read())
            ##输入中文，会产生获取的文件名字乱码问题
            filename=f.split('\')
            num=len(filename)-1
            attr.add_header('Content-Disposition', 'attachment', filename=filename[num])
            msg.attach(attr)

##群发邮件加附件函数
def send_email(title,message,files,reciever):
    ##我用的是读取配置文件变量模块（ConfigParser），可直接赋值更方便
    cf =ConfigParser.ConfigParser() 
    cf.read("config.ini")
    sender=cf.get('smtp',"sender")    ##此填入发件人
    mail_host=cf.get('smtp','mail_host')  ##邮箱主机 如：SMTP.163.com
    mail_port=cf.get('smtp','mail_port')  ##端口：一般为25
    send_pass=cf.get('smtp','send_pass') ##邮箱授权码


    for i in reciever:
        print i
        msg = MIMEMultipart()
        msg['From']=sender
        msg['To'] =i
        msg['Subject']=Header(title,'utf-8')
        msg.attach(MIMEText(message, 'plain', 'utf-8'))
        try:
            if files != []:
                send_file(msg,files)       ##调用上面send_file（）
        except:
            pass
    try:
        server = smtplib.SMTP()
        server.connect(mail_host,mail_port)
        server.login(sender, send_pass)
        server.sendmail(sender,i, msg.as_string())
        print "邮件发送成功！！"
        server.quit()
    except smtplib.SMTPException:
     print "Error:无法发送邮件"



if __name__ == "__main__":
    ##可添加多个收件邮箱和附件（但附件必须要带文件类型如 .jpg）    
    send_email("test","server failed",[],["邮箱账号1","邮箱账号2"])

可能出现的报错：

  smtplib 模块
1、smtplib.SMTPAuthenticationError: (550, b'User has no permission')
2、smtplib.SMTPAuthenticationError: (535, b'Error: authentication failed')
这两个错误是你的密码用的不是授权码导致
3、554 DT:SPM 163 smtp5
这属于网易邮箱的一个退回检测机制导致，貌似跟发送比较频繁有关，被系统判定为病毒或垃圾邮件

稍微完善版：

import smtplib
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication
from email.mime.multipart import MIMEMultipart
from email.header import Header
import ConfigParser

#message :正文内容,数据类型为string
#files：所添加附件绝对路径加名字.文件类型，数据类型为list
class email:
    def __init__(self):
        cf =ConfigParser.ConfigParser()
        cf.read("config.ini")
        self.sender=cf.get('smtp',"sender")
        self.mail_host=cf.get('smtp','mail_host')
        self.mail_port=cf.get('smtp','mail_port')
        self.send_pass=cf.get('smtp','send_pass')

    def send_file(self,files):
     ##添加附件部分
        for f in files :
            attr = MIMEApplication(open(f,'rb').read())
            ##输入中文，会产生获取的文件名字乱码问题
            filename=f.split('\')
            num=len(filename)-1
            attr.add_header('Content-Disposition', 'attachment', filename=filename[num])
            msg.attach(attr)
##群发邮件加附件函数
    def send_email(self,title,message,files,reciever):

        for i in reciever:
            self.msg = MIMEMultipart()
            self.msg['From']=self.sender
            self.msg['To'] =i
            self.msg['Subject']=Header(title,'utf-8')
            self.msg.attach(MIMEText(message, 'plain', 'utf-8'))
        try:
            if files != []:
                self.send_file(files)
        except:
            pass
        try:
            server = smtplib.SMTP()
            server.connect(self.mail_host,self.mail_port)
            server.login(self.sender, self.send_pass)
            server.sendmail(self.sender,i, self.msg.as_string())
            print "邮件发送成功！！"
            server.quit()
        except smtplib.SMTPException:
        print "Error:无法发送邮件"



if __name__ == "__main__":
    Email=email()
    Email.send_email("test","server failed",[],["收件邮箱1"])