Solved

Reverse DNS entry for sending secure email ?

Posted on 2010-11-21
9
809 Views
Last Modified: 2012-06-21
Hi All,

I'm having problem like the following when I tried to send to abacus@abacusevents.com:

Diagnostic information for administrators:

Generating server: mail.domain.com

abacus@abacusevents.com
mail.abacusevents.com [B]#<mail.abacusevents.com #5.0.0 smtp; 554 "Refused. You have no reverse DNS entry. Contact abuse@suresupport.com for details."> #SMTP#

Open in new window


which records should I add into my internal DNS or my ISP DNS server ? MX or PTR for this problem ?

and suppose i already got one service that is running on my one public static IP address:

eg: 25 SMTP and 80 normal website and 443 (OWA, HTTPS, etc...)

do i still need to add the reverse DNS for this server in the public facing DNS ?

Thanks.
0
Comment
Question by:jjoz
[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
9 Comments
 
LVL 15

Expert Comment

by:getzjd
ID: 34185217
You need to contact your ISP.  Your send connector and ptr record shoudl be the same
0
 
LVL 1

Author Comment

by:jjoz
ID: 34185275
thanks for the reply man, since i only have one public IP address with many CNAME, shouldI create just one PTR records describing mail.domain.com into my public IP address ?
0
 
LVL 15

Expert Comment

by:getzjd
ID: 34185305
Yes have the ISP create one PTR record.

The correct record shoudl be  xx.xxx.xx.xx.in-addr.arpa   IN  PTR yourdomain.com    where the x's are your current IP reversed.
0
Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

 
LVL 15

Expert Comment

by:getzjd
ID: 34185310
man.. I keep misspelling SHOULD*   sheesh
0
 
LVL 1

Author Comment

by:jjoz
ID: 34185362
thanks man, so in this case i shall put PTR mydomain.com instead of PTR mail.domain.com ??

Thanks for the reply man.
0
 
LVL 8

Assisted Solution

by:Mohammad Ishtyaq Khatri
Mohammad Ishtyaq Khatri earned 166 total points
ID: 34185375
Confirm your IP with the ISP & also chek weather you ip is in blacklist..?

http://www.mxtoolbox.com/blacklists.aspx

Thanks,
AgentMIK
0
 
LVL 15

Assisted Solution

by:getzjd
getzjd earned 167 total points
ID: 34185408
telnet to your server on port 25 and that should be your mx record/PTR record name... assuming it was setup correctly
0
 
LVL 71

Accepted Solution

by:
Chris Dent earned 167 total points
ID: 34187293

I feel this needs to be clear.

> thanks man, so in this case i shall put PTR mydomain.com instead of PTR mail.domain.com ??

No.

You should put mail.mydomain.com; this needs to match up to the name used by your mail server.

Expect this change to take 24 hours to take effect. Your ISP has a value set for that record right now (other people will remember it for 24 hours).

Chris
0
 
LVL 1

Author Closing Comment

by:jjoz
ID: 34193958
Thanks Chris
0

Featured Post

U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

Question has a verified solution.

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

If you troubleshoot Outlook for clients, you may want to know a bit more about the OST file before doing your next job. IMAP can cause a lot of drama if removed in the accounts without backing up.
Sometimes clients can lose connectivity with the Lotus Notes Domino Server, but there's not always an obvious answer as to why it happens.   Read this article to follow one of the first experiences I had with Lotus Notes on a client's machine, my…
In this video we show how to create a mailbox database 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 Servers >> Data…
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

726 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