Search  
You are here:  Forums    
Latest Posts Minimize
RE: Error: operation was canceled by bhoopman on 01-07-2009 9:00 PM
RE: Server Upgrades Coming Soon by SteveT on 12-28-2008 7:43 AM
RE: accessing with outlook by SteveT on 12-28-2008 7:41 AM
RE: accessing with outlook by DriftorX on 12-27-2008 2:51 AM
accessing with outlook by DriftorX on 12-27-2008 12:52 AM
RE: I can send, but can't receive by Kylibar on 12-23-2008 2:34 AM
RE: I CAN recieve, but CANNOT send. by Kylibar on 12-22-2008 11:24 PM
RE: I CAN recieve, but CANNOT send. by Kylibar on 12-22-2008 11:24 PM
RE: I CAN recieve, but CANNOT send. by Kylibar on 12-22-2008 11:24 PM
RE: I CAN recieve, but CANNOT send. by mcorrow on 12-22-2008 10:33 PM

Top 10 Links Minimize

ArGoStuff User to User Support Forums Minimize
Forums > General Discussion Forums > ArGoSoft Mail Server
Subject: Reverse PTR
Prev Next
You are not authorized to post a reply.

Author Messages
HWL

Posts: 57
Online: User is Offline
ArGoNuke Ensign
ArGoNuke Ensign
01-22-2008 2:07 PM  

I asked this question about a month back and wondered if anyone has seen improvement or not....

I had to turn off reverse PTR checking on my server because suddenly it seemed quite a few majors (hotmail, etc) stopped using reverse PTR records.

I am again getting hit by a lot from spammers with no reverse PTR.  I am concerned as to whether to turn checking on again due to these majors not using it....thoughts? 

I currently use 5 dnsbl's too (just added the 5th).
SteveT
Forum Administrator

Posts: 2594
Online: User is Offline
ArGoNuke Admiral
ArGoNuke Admiral
01-24-2008 8:24 PM  
HWL,

Hotmail does use a Reverse DNS. I used the tools at DNS Stuff (http://www.dnsstuff.com/) to look up the information. And as noted below, the RFC states you should have one, so all these major companies should be have them if their servers are set up correctly. Is it possible that the messages you were seeing were spoofed?

OK. The IPs of all of your mail server(s) have reverse DNS (PTR) entries. RFC1912 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mailservers will not accept mail from mailservers with no reverse DNS entry. Note that this information is cached, so if you changed it recently, it will not be reflected here (see the www.DNSstuff.com Reverse DNS Tool for the current data). The reverse DNS entries are:

40.244.54.65.in-addr.arpa bay0-mc2-f.bay0.hotmail.com. [TTL=3600]
72.244.54.65.in-addr.arpa mx3.hotmail.com. [TTL=3600]
104.245.54.65.in-addr.arpa bay0-mc12-f.bay0.hotmail.com. [TTL=3600]
8.245.54.65.in-addr.arpa mail.hotmail.com. [TTL=3600]
Top Cat Computing BOINC Team StatsRegards,
Steve Topilnycky
Top Cat Computing
http://www.topcatcomputing.com
You are not authorized to post a reply.
Forums > General Discussion Forums > ArGoSoft Mail Server > Reverse PTR


ActiveForums 3.7

Donations Minimize

Find our site useful? Make a donation to show your support

Donate

logo_ccMC.giflogo_ccVisa.giflogo_ccDiscover.giflogo_ccAmex.gif

ArGoStuff Supporters

 

News from ArGoSoft Minimize
1 2 3 4 5 6

Mail Server v1.0.5.9

Mail Server

  • Added additonal tracking of connections for SMTP and POP3: if they stay on for over 30 minutes, they are getting disconnected;
  • Fixed a problem with mailbags when they accept mail only when main server is down: in case of timeout mailbags were still treating the main server as "available" and rejecting mail;
  • Changed color coding of logs. Now red denotes only errors, delivery is green, POP3, SMTP, IMAP connections - blue;

Web Interface

  • Fixed a problem, when session timeouts were causing errors in the windows system logs;
1/2/2009 1:52:01 PM
Happy Holidays to All!!!

Just wanted to wish everybody Happy Holidays, and wish all the best to all in 2009

Looking forward to work with you next year!

Archie

12/23/2008 10:13:32 PM
Mail Server Pro v1.8.9.6
  • Improved Export to .NET function - sometimes email messages were not getting exported, because the database of email messages was not up to date. Now each folder gets rebuilt before the export function;
12/2/2008 11:19:02 PM
Email Address Validator

We have discontinued our email address validation service, and launched new web site:

http://www.emailaddressvalidator.com

It provides the web service interface to validate lists of email addresses. We hope that our service will help to reduce unwanted traffic on Internet, ensuring that mail is sent only to valid and legitimate addresses.

Sign up now, and get 150 free validations!

11/25/2008 10:13:02 AM
Mail Server v1.0.5.8

Mail Server

  • Mailbags now have an option to accept mail only when specified server is down - will help to fight with spam which attempt to deliver mail bypassing the main server;
  • When delivering mail, if main exchanger returns 4xx reply (temporary problem), the server will not try other exchangers, will retry later the main exchanger;
  • Server options moved from registry to a XML file. 64 bit versions of Vista and 2008 server appear to be having access rights problems to the Windows registry, and the change will make our server more compatible with 64 bit versions;
  • Added an option to specify the number of lines on the log screen, when using the user interface. Was causing memory problems if left running for long time;
  • Fixed couple of problems, which were showing when SQL server was set up to use case sensitive SQL statements;
  • Made changes in the remoting interface to allow logging in using aliases;

Web Interface

  • Made changes to allow logging in using aliases;
  • When viewing folders, web interface now displays the name of logged in user;
11/12/2008 2:31:31 PM

1 2 3 4 5 6

Protect Your Computer today withGet AVG Today

VB100


Home:ArGoStuff:Forums:Articles:Cyber Security Tips:FAQ:Downloads:Links
Copyright 2006-2008 by ArGoStuff Terms Of Use Privacy Statement