Solved

Major Reverse DNS Problem with emails, e.g. AOL

Posted on 2006-07-13
5
243 Views
Last Modified: 2010-03-06
I host my own mailserver on Windows SBS 2003 Prem / Exchange Server 2003. The domain name for this server is s1.gurkanandgurkan.com, with an IP of 212.108.128.50 and works as our SMTP gateway behind our firewall (DMZ port).
We are having major problems with getting emails to AOL and some other servers. They say the cause is Reverse DNS and wherever I look I find a negative Reverse DNS lookup. Whatever we have tried doing is not solving the problem which is now going on for 6 months. What can ve do to fix it. Please help.
0
Comment
Question by:agurkan
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
5 Comments
 
LVL 104

Expert Comment

by:Sembee
ID: 17103601
Go and look at my DNS Configuration page...

http://www.amset.info/exchange/dnsconfig.asp

That explains most things.

Your reverse DNS lookup is set by your ISP. No one else. You need to call them to get it set. If they tell you to speak to your domain name registrar then ask to speak to someone who has a clue.

Simon.
0
 
LVL 8

Expert Comment

by:bilbus
ID: 17115478
you talk to your isp, the one that provides your internet connection.

Also you may want to block access to port 80 on your server. Your SBS config page is comming up when i login to 212.108.128.50.
0
 

Author Comment

by:agurkan
ID: 17179697
Simon,

Great site. Good answer. At least I know that it is not me but the ISP.

On your reccomendation, I talked to the ISP however, being a small ISP, although they have the will, they do not have the knowledge in setting up the RDNS. Do you have any information that would help them.
0
 
LVL 104

Accepted Solution

by:
Sembee earned 250 total points
ID: 17180058
Ask for the call to be escalated. Someone there must know how it is set. If they are a really small ISP then it may be set by the upstream provider.

Simon.
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This process describes the steps required to Import and Export data from and to .pst files using Exchange 2010. We can use these steps to export data from a user to a .pst file, import data back to the same or a different user, or even import data t…
Find out what you should include to make the best professional email signature for your organization.
In this video we show how to create a Shared Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Sha…
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question