为了能够实现邮件发送功能，首先，我们需要了解一下邮件的发送过程是什么样子的，此处不再详细说明，请大家自行搜索或查看?p=438
在了解了邮件的发送过程后，为了实现邮件的全自动匿名发送，我们需要通过windows的命令行，解析邮件的匿名服务器，然后使用匿名服务器，发送邮件到相应的邮箱
代码如下：
def _get_mail_exchanger(domain_name,name_server=""):#print domain_nametemp_file=os.getenv("temp")+"\\temp.lsh"os.system("nslookup -qt=mx "+domain_name+" "+name_server+" >"+temp_file+" 2>&1")f=open(temp_file)c=f.read()f.close()os.remove(temp_file)#print cinternet_addresses_map=_get_internet_address(c)mail_exchangers=re.findall(r"mail\s+exchanger\s*=\s*(\S+)",c)#mail_exchangers=[internet_addresses_map.get(i,i) for i in mail_exchangers]mail_exchangerIPs=[]for i in mail_exchangers:try:mail_exchangerIPs.append(internet_addresses_map[i])except:ip=_getIP(i)if ip:mail_exchangerIPs.append(ip)if mail_exchangerIPs or name_server:print "mail_exchangers",mail_exchangerIPsreturn mail_exchangerIPselse:print "mail_exchangers from 预配置",g_mail_exchanger.get(domain_name,[])return g_mail_exchanger.get(domain_name,[])其中有个函数用于获取匿名邮箱服务器地址，使用正则分析返回值，，代码如下：
def _get_internet_address(content):internet_addresses=re.findall(r"(\S+)\s+internet\s+address\s*=\s*(\S+)",content)internet_addresses_map={}for internet_address in internet_addresses:internet_addresses_map[internet_address[0]]=internet_address[1]return internet_addresses_map
然后，有了地址后，我们需要通过解析出地址的IP，同样，使用windows命令获取结果并正则分析获取IP，代码如下：
def _getIP(domain_name,name_server=""):temp_file=os.getenv("temp")+"\\temp.lsh"os.system("nslookup -qt=a "+domain_name+" "+name_server+" >"+temp_file+" 2>&1")f=open(temp_file)c=f.read()f.close()os.remove(temp_file)ips=re.findall(domain_name+r"\s*Address\s*:\s*(\S+)",c,re.I)if ips:return ips[0][0]elif name_server=="":return _getIP(domain_name,"8.8.8.8")else:return None有了邮箱服务器的IP，剩下的事情就是使用IP去发送邮件了，代码比较简单
def _send_to_mail_exchanger(mail_exchanger,mail_from,rcpt_to,From="",To="",Subject="",Date=None,Body="",attachments=None,encoding="gbk"):import smtplib,emailfrom email.MIMEMultipart import MIMEMultipartfrom email.MIMEText import MIMETextfrom email.MIMEImage import MIMEImage# 构造MIMEMultipart对象做为根容器main_msg=email.MIMEMultipart.MIMEMultipart()# 设置根容器属性main_msg['From'] = Frommain_msg['To'] = Tomain_msg['Subject'] = Subjectif Date:main_msg['Date'] = Dateelse:main_msg['Date'] = email.Utils.formatdate()# 构造MIMEText对象做为邮件显示内容并附加到根容器text_msg = email.MIMEText.MIMEText(Body,'html', encoding)main_msg.attach(text_msg)# 构造MIMEBase对象做为文件附件内容并附加到根容器if attachments:for attachment in attachments:if not os.path.isfile(attachment):continueif IsImage(attachment):try:fp = open(attachment, "rb")file_msg = MIMEImage(fp.read())fp.close()file_msg.add_header("Content-ID", os.path.basename(attachment).replace(".jpg", "").replace(".png", ""))main_msg.attach(file_msg)except:passelse:file_msg=email.MIMEBase.MIMEBase("application","octet-stream")f=open(attachment,'rb')file_msg.set_payload(f.read())f.close()email.Encoders.encode_base64(file_msg)file_msg.add_header('Content-Disposition','attachment',filename=os.path.basename(attachment))main_msg.attach(file_msg)# 用smtp发送邮件data=main_msg.as_string()for i in range(2):try:Log(mail_exchanger)server=smtplib.SMTP(mail_exchanger)Log(mail_from)Log(rcpt_to)ret=server.sendmail(mail_from,rcpt_to,data)breakexcept:import tracebackLog(traceback.format_exc())ret=Falsetry:server.quit()except:passtry:server.quit()except:passif ret==False or ret:#print "发往如下的邮件失败:",rcpt_toreturn Falsereturn Trueok，这样把整个流程整理清楚后，就可以自动发送邮件了
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