Script to extract all emails,domains,IP its MX record domains with IPS from email you send to.07.12.13

script to extract all emails,domains,IP its MX record domains with IPS from email you send to.
simply extract all this from the mail logs and create a postfix sender_access list marked as OK

import os,sys
import re
import dns.resolver
import socket
import gzip
from subprocess import call

class Autopostwhite():
  def __init__(self):
    self.maxlines = 10
    self.save_file = 'sender_access'
    #self.save_file = '/etc/postfix/sender_access'    
    path = "/var/log/"
    
    lines = self.get_text(path)
    emails = self.get_emails(lines)
    domain_ips = self.set_domain_ip(emails)
    email_domains = domain_ips[0]
    email_ips = domain_ips[1]
    mx_domains = self.get_mx(email_domains)
    mx_ips = self.set_mx_ip(mx_domains)
    self.save_whitelist(emails,email_domains,email_ips,mx_domains,mx_ips)
    self.create_postfix_db()
    
  def create_postfix_db(self):
    if(os.path.isfile(self.save_file)):
      call(["postmap", self.save_file])
    
  def get_text(self,path):
    lines = []
    for f in os.listdir(path):
      if(f.startswith('mail.log')):
        if(f.endswith('gz')):        
          fz = gzip.open(path + f,'rb')
          lines += fz.readlines()
        else:
          fs = open(path + f, 'r')
          lines += fs.readlines()
    return lines
  
  def save_whitelist(self,emails,email_domains,email_ips,mx_domains,mx_ips):
    l = []
    l.extend(emails)
    l.extend(email_domains)
    l.extend(mx_domains)
    l.extend(email_ips)
    l.extend(mx_ips)
    l = sorted(list(set(l)))
    s = ''
    
    if(os.path.isfile('reject_list.txt')):
      rf = open('reject_list.txt', 'r')
      rl = rf.readlines()
      for i in rl:
        entry = i.strip()
        if(entry):
          if(entry in l):
            l.remove(entry)
          s += str(entry) + " REJECT\n"

for i in l:
      s += str(i) + " OK\n"

f = open(self.save_file, 'w')
    f.write(s)
    f.close()

def set_mx_ip(self,m):
    mxs = []
    for i in m:
      try:
        ip = socket.gethostbyname(i)
        mxs.append(ip)
      except IOError, error:
        pass
    return mxs

def get_mx(self,e):
    mxs = []
    for i in e:
      answers = dns.resolver.query(i, 'MX')
      for rdata in answers:
        mxs.append(str(rdata.exchange))
    return sorted(list(set(mxs)))

def set_domain_ip(self,e):
    domains = []
    ips = []    
    for i in e:
      a = i.split('@')
      try:
        ip = socket.gethostbyname(a[1])
        domains.append(a[1])
        ips.append(ip)
      except IOError, error:
        pass

return [sorted(list(set(domains))),sorted(list(set(ips)))]

def get_emails(self,lines):
    emails= []
    x = 0
    for l in lines:
      m1 = re.search(': to=<',l)
      m2 = re.search('postfix/smtp',l)
      if(m1 and m2):
        m3 = re.search(r'\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+',l)
        if(m3):
          email = m3.group().lower()
          emails.append(email)
          x +=1;
          if(x > self.maxlines):
            break

return sorted(list(set(emails)))

if __name__ == "__main__":
  a = Autopostwhite()

http://www.postfix.org/

Anonymous

below code does not work 
this one worked for me:

import os,sys
import re
import dns.resolver
import socket
import gzip
from subprocess import call

class Autopostwhite():
  def __init__(self):
    self.maxlines = 2000000
    self.save_file = 'sender_access'
    #self.save_file = '/etc/postfix/sender_access'    
    path = "/var/log/"
    lines = self.get_text(path)

emails = self.get_emails(lines)
    domain_ips = self.set_domain_ip(emails)
    email_domains = domain_ips[0]
    email_ips = domain_ips[1]
    emails = domain_ips[2]
    mx_domains = self.get_mx(email_domains)
    mx_ips = self.get_mx_ip(mx_domains)
    self.save_whitelist(emails,email_domains,email_ips,mx_domains,mx_ips)
    self.create_postfix_db()

def create_postfix_db(self):
    if(os.path.isfile(self.save_file)):
      call(["postmap", self.save_file])
    
  def get_text(self,path):
    lines = []
    for f in os.listdir(path):
      if(f.startswith('mail.log')):
        if(f.endswith('gz')):        
          fz = gzip.open(path + f,'rb')
          lines.extend(fz.readlines())
        else:
          fs = open(path + f, 'r')
          lines.extend(fs.readlines())
    
    return lines
  
  def save_whitelist(self,emails,email_domains,email_ips,mx_domains,mx_ips):
    l = []
    l.extend(emails)
    l.extend(email_domains)
    l.extend(email_ips)
    l.extend(mx_domains)
    l.extend(mx_ips)
    l = list(set(l))
    s = ''
    if(os.path.isfile('reject_list.txt')):
      rf = open('reject_list.txt', 'r')
      rl = rf.readlines()
      for i in rl:
        entry = i.strip()
        if(entry):
          if(entry in l):
            l.remove(entry)
          s += str(entry) + " REJECT\n"

l = set(l)
    for i in l:
      s += str(i) + " OK\n"

f = open(self.save_file, 'w')
    f.write(s)
    f.close()

def get_mx_ip(self,m):
    mxs = []
    for i in m:
      try:
        ip = socket.gethostbyname(i)
        mxs.append(ip)
      except IOError, error:
        pass
    return sorted(list(set(mxs)))

def get_mx(self,e):
    mxs = []
    for i in e:
      try:
        answers = dns.resolver.query(i, 'MX')
        for rdata in answers:
          mxs.append(str(rdata.exchange)[:-1].lower())
      except (dns.resolver.NoAnswer) as e:
        pass
    domains = list(set(mxs))
    return sorted(domains)

def set_domain_ip(self,e):
    domains = []
    ips = []
    emails = []    
    for i in e:
      a = i.split('@')
      try:
        ip = socket.gethostbyname(a[1])
        domains.append(a[1].lower())
        ips.append(ip)
        emails.append(i.lower())
      except IOError, error:
        pass
    domains = list(set(domains))
    ips = list(set(ips))
    emails = list(set(emails))
    return [sorted(domains),sorted(ips),sorted(emails)]

def get_emails(self,lines):
    emails= []
    x = 0
    for l in lines:
      m1 = re.search(': to=<',l)
      m2 = re.search('postfix/smtp',l)

if(m1 and m2):
        m3 = re.search(r'\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+',l)
        if(m3):
          email = m3.group().lower()
          emails.append(email)
          x +=1;
          if(x > self.maxlines):
            break

return sorted(list(set(emails)))

if __name__ == "__main__":
  a = Autopostwhite()

07.12.13

Anonymous

Script to extract all emails,domains,IP its MX record domains with IPS from email you send to.07.12.13

Information Epoch 1714305291