Solved

Message header originating from my server showing wrong IP address

Posted on 2006-11-01
6
283 Views
Last Modified: 2010-03-06
We recently added a PTR and SPF record for our domain. Now suddenly we have a company whom we frequently send mail to rejecting mail from us. I inspected a message header sent from our mail server and it shows the correct domain name for our mail server but the corresponding IP address is wrong. The IP being shown does belong to us but it's not the correct one. Can someone please tell me how to correct this?
0
Comment
Question by:chimchimster
6 Comments
 
LVL 6

Accepted Solution

by:
mmudry earned 168 total points
ID: 17851273
Have you verified your public SPF and PTR records and do they contain the right information?

I would also try contacting the party who is denying them to make sure they are getting the right DNS info.
0
 
LVL 12

Assisted Solution

by:aa230002
aa230002 earned 166 total points
ID: 17852206
Enter your domain name here and check all details.
http://www.checkdns.net/quickcheckdomainf.aspx

Thanks,
Amit Aggarwal.
0
 
LVL 104

Assisted Solution

by:Sembee
Sembee earned 166 total points
ID: 17852780
I usually see that when the NAT isn't set correctly on the firewall.

Simon.
0
 
LVL 8

Expert Comment

by:nitadmin
ID: 17855285
Sambee is correct. Very likely you NAT isn't configured correctly on your firewall or router.

Do the the following.
Login to your exchange server, using remote desktop connection (rdp) or the console.
Open the IE or Firefox web browser. (which ever you prefer)
The enter this url into the address bar.
http://www.whatismyip.com or http://www.showmyip.com

Both these websites will display your public ip address.

Then I suggest that you login to your firewall or Router and take corrective action to correct the NAT.

Cheers,
NITADMIN
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
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…
In this video we show how to create an email address policy 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 Mail Flow…
This video discusses moving either the default database or any database to a new volume.

770 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