环境：python2.7
1 #coding:utf-8 2 from __future__ import unicode_literals 3 __author__ = 'crista' 4 5 import smtplib 6 from email.mime.text import MIMEText 7 from email.mime.application import MIMEApplication 8 from email.mime.multipart import MIMEMultipart 9 from email.header import Header10 import ConfigParser11 12 #message :正文内容,数据类型为string13 #files：所添加附件绝对路径加名字.文件类型，数据类型为list14 15 def send_file(msg,files):16 ##添加附件部分17 for f in files :18 attr = MIMEApplication(open(f,'rb').read())19 ##输入中文，会产生获取的文件名字乱码问题20 filename=f.split('\\')21 num=len(filename)-122 attr.add_header('Content-Disposition', 'attachment', filename=filename[num])23 msg.attach(attr)24 25 ##群发邮件加附件函数26 def send_email(title,message,files,reciever):27 ##我用的是读取配置文件变量模块（ConfigParser），可直接赋值更方便28 cf =ConfigParser.ConfigParser() 29 cf.read("config.ini")30 sender=cf.get('smtp',"sender") ##此填入发件人31 mail_host=cf.get('smtp','mail_host') ##邮箱主机 如：SMTP.163.com32 mail_port=cf.get('smtp','mail_port') ##端口：一般为2533 send_pass=cf.get('smtp','send_pass') ##邮箱授权码34 35 36 for i in reciever:37 print i38 msg = MIMEMultipart()39 msg['From']=sender40 msg['To'] =i41 msg['Subject']=Header(title,'utf-8')42 msg.attach(MIMEText(message, 'plain', 'utf-8'))43 try:44 if files != []:45 send_file(msg,files) ##调用上面send_file（）46 except:47 pass48 try:49 server = smtplib.SMTP()50 server.connect(mail_host,mail_port)51 server.login(sender, send_pass)52 server.sendmail(sender,i, msg.as_string())53 print "邮件发送成功！！"54 server.quit()55 except smtplib.SMTPException:56 print "Error:无法发送邮件"57 58 59 60 if __name__ == "__main__":61 ##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） 62 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 smtplibfrom email.mime.text import MIMETextfrom email.mime.application import MIMEApplicationfrom email.mime.multipart import MIMEMultipartfrom email.header import Headerimport 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listclass 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"])