Solved

No Reverse-DNS (PTR) is assigned to your IP

Posted on 2011-03-15
9
2,371 Views
Last Modified: 2012-06-27
hi,

i was testing if my exchange is listed on
http://www.uceprotect.net

fortunately it is not listed there however i have a warning:

WARNING: No Reverse-DNS (PTR) is assigned to your IP
Please request your Admin or Provider to fix this.

how do i fix it ?

thanks

0
Comment
Question by:aucklandnz
9 Comments
 
LVL 76

Accepted Solution

by:
Alan Hardisty earned 250 total points
ID: 35135737
If you have not got Reverse DNS assigned to your IP Address, you need to call your ISP and request one e.g., mail.domain.com and it needs to resolve in DNS back to the IP Address that you are sending mail from.

Please have a read of my article to make sure the rest of your configuration meets RFC standards:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/A_2427-Problems-sending-mail-to-one-or-more-external-domains.html
0
 
LVL 74

Assisted Solution

by:Glen Knight
Glen Knight earned 250 total points
ID: 35135738
You need to contact you ISP and ask them to confogure a reverse DNS entry for your IP address.  See my guide here for exchange DNS confoguration: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2370-Exchange-DNS-Configuration.html
0
 
LVL 31

Expert Comment

by:MegaNuk3
ID: 35135739
You need to call your ISP and ask them to create you a PTR(reverse DNS) record
0
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 
LVL 74

Expert Comment

by:Glen Knight
ID: 35135756
MegaNuk3, you really should get a faster mobile ;)
0
 
LVL 10

Expert Comment

by:Muzafar Momin
ID: 35136127
aks your ISP to assign DNS point for the Public IP that you are using to send mail outside
0
 
LVL 7

Expert Comment

by:waleeda
ID: 35136136
you should call your ISP and ask them to add the reverse DNS record for your IP address
0
 
LVL 31

Expert Comment

by:MegaNuk3
ID: 35136342
Any idea when Iphone5 is coming out? I think it is to do with mobile signal whilst travelling on a train...
0
 
LVL 74

Expert Comment

by:Glen Knight
ID: 35136343
June/July time I suspect ;)
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Learn to move / copy / export exchange contacts to iPhone without using any software. Also see the issues in configuration of exchange with iPhone to migrate contacts.
MS Outlook is a world-class email client application that is mainly used for e-communication globally.  In this article, we will discuss the basic idea about MS Outlook, its advanced features, and types of MS Outlook File formats.
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…
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…

856 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