DNS
 
Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
User Name:
Password:
Remember me
Go Back   Dev Shed Forums > System Administration > DNS
Reload this Page

Incoming mail/DNS/MX issue

Discuss Incoming mail/DNS/MX issue in the DNS forum on Dev Shed.
Incoming mail/DNS/MX issue DNS forum discussing issues, servers, and configurations. The Domain Name System (DNS) is what the Internet uses to translate website names into IP addresses.

Reply
Add This Thread To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 
« Previous Thread | Next Thread »  
Thread Tools Search this Thread Rate Thread Display Modes
 
Unread Dev Shed Forums Sponsor:
Dell PowerEdge Servers
  #1  
Old May 1st, 2008, 09:45 AM
jweinstein jweinstein is offline
Registered User
Dev Shed Newbie (0 - 499 posts)
  
Join Date: May 2008
Posts: 1 jweinstein User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: 18 m 59 sec
Reputation Power: 0
Exclamation Incoming mail/DNS/MX issue
Hello,
We recently implemented a PePLink Balance 300 router which aggregates multiple WAN connections and also hosts our external DNS. The problem I am now encountering is that certain MX/DNS resolutions are not working properly for external users trying to send us email. I am still getting incoming mail from lots of places like hotmail.com and gmail.com.

The domain in question is "ablonline . com".

For example, mail users at AOL.com are getting rejected when trying to send an email to me at "josh @ ablonline . com", it gets rejected as the user "josh @ www . ablonline . com" is not a valid email address. I can't seem to post the email return error from AOL as it has domain names and emails which since I am a new user can't submit. It appears that AOL is resolving our CNAME and although people are trying to send to "josh @ ablonline . com" it is being resolved to "josh @ www . ablonline . com" which our exchange server rejects.

If anyone has any insight as to what the issue might be with my DNS setup, please let me know.
Reply With Quote
  #2  
Old May 1st, 2008, 05:48 PM
fishtoprecords's Avatar
fishtoprecords fishtoprecords is offline
Contributing User
Dev Shed Novice (500 - 999 posts)
  
Join Date: Sep 2007
Location: outside Washington DC
Posts: 610 fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level)fishtoprecords User rank is First Lieutenant (10000 - 20000 Reputation Level) 
Time spent in forums: 5 Days 15 h 24 m 48 sec
Reputation Power: 177
Have you had DNSstuff check it?
It does a fairly good job of verifying proper MX records, etc.

http://www.dnsstuff.com/

Checking your domain, I don't see any MX records for the www subdomain. It may not be defaulting properly.

I once had a former ISP hosting vendor keep the www.domain MX record in their DNS years after we stopped using them.
Reply With Quote
  #3  
Old May 1st, 2008, 08:00 PM
hiker's Avatar
hiker hiker is offline
They're coming to take me away
Click here for more information.
  
Join Date: Jan 2005
Location: Florida
Posts: 2,596 hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)hiker User rank is General 3rd Grade (Above 100000 Reputation Level)  Folding Points: 27176 Folding Title: Starter FolderFolding Points: 27176 Folding Title: Starter Folder
Time spent in forums: 1 Month 1 Week 1 Day 5 h 37 m 8 sec
Reputation Power: 1166
What CNAME do you have setup?

If you can post a copy of your zone file, I can see if there are any inconsistencies. Also, is it only AOL that's having this problem?
Reply With Quote
Reply

Viewing: Dev Shed Forums > System Administration > DNS > Incoming mail/DNS/MX issue

« Previous Thread | Next Thread »

Thread Tools  Search this Thread 
Search this Thread:

Advanced Search
Display Modes  Rate This Thread 
Linear Mode Linear Mode
Rate This Thread:


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox
Forum Jump

 Free IT White Papers!
 
Accelerating Trading Partner Performance
One in five. That's how many partner transactions have at least one error. That is an amazing statistic, particularly given the extraordinary leaps in innovation across the global supply chain during the past two decades. Download this white paper to learn more.
 
Competing on Analytics
This Tech Analysis is designed to help identify characteristics shared by analytics competitors, and includes information about 32 organizations that have made a commitment to quantitative, fact-based analysis.
 
Cost Effective Scaling with Virtualization and Coyote Point Systems
An overview of the industry trend toward virtualization, how server consolidation has increased the importance of application uptime and the steps being taken to integrate load balancing technology with virtualized servers.
 
Five Checkpoints to Implementing IP Telephony
Implementation planning for IP PBX software and IP telephony has become vital as businesses replace discontinued legacy PBX phone systems. This informative whitepaper outlines five "checkpoints" for any implementation plan that will help make IP communications a successful proposition.
 
Hosted Email Security: Staying Ahead of New Threats
In the last two years, email has become a fierce battleground between the nefarious forces of spam and malware, and the heroes of messaging protection. The spam volumes increased alarmingly every month, bringing clever new forms of phishing and virus propagation attacks.
 

Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
  
 





© 2003-2008 by Developer Shed. All rights reserved. DS Cluster 3 hosted by Hostway.