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

DNS change / email delivery / MX and A records

Posted on 2010-11-30
Last Modified: 2012-08-14
Let's say we've an organization named Test, with a domain test.org. The test.org domain is currently registered through Go Daddy but the DNS is not through Go Daddy, its handled by another vendor. I plan to switch the DNS to Go Daddy, but how can I do this so that email will be routed without their being any email downtime? In Go Daddy, once I set the DNS to be handled in Go Daddy, I can't set all the MX and A records until the DNS change takes effect, which seems like that would create a few hours(?) in which email won't be delivered. Thanks for your help.
Question by:canalicomputers
  • 4
  • 3

Expert Comment

ID: 34238389
LVL 33

Expert Comment

by:Dave Howe
ID: 34238401
add a new MX record pointing to the new mailserver, with a smaller number than the existing records. that should cause all mail to go to the new mailserver, while the dns is still hosted at the old location

then move dns; it doesn't matter which record a sending mailserver sees at that point, it will be sufficient to ensure the new server gets the mail.

the only key element is making sure the new mailserver will accept mail for your domain before you have moved dns.
LVL 33

Expert Comment

by:Dave Howe
ID: 34238412
I should add - between adding the new MX record and moving dns, allow *at least* 48 hours. that will cause cached results at various sites/isps to expire and the new record to be acquired.
Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.


Author Comment

ID: 34238474
Thank you, but how do I addMX records in Go Daddy before moving DNS? Currently, it just says "not hosted here" and I dont think theres any way to add records. It seems like you have to move DNS before editing.
LVL 33

Expert Comment

by:Dave Howe
ID: 34238817
no, you add records where the dns is hosted *now*, let the dust settle, then move dns.

Author Comment

ID: 34238940
Ah ok, but once I make the move, how will Go Daddy know of the records in the old DNS location?
LVL 33

Accepted Solution

Dave Howe earned 500 total points
ID: 34238985
they won't have to.

provided you are pointing to the same mail server before and after the move, it doesn't matter if the records are an exact match or not - just that mail goes to the right place.

often if you are migrating to a new provider, they will ask for a "zone file" to import, so as to save setup time - you can make those quite easily, they are basically a txt file containing the dns records. Otherwise, you will usually have a time interval between when godaddy accepts the dns transfer, and when the TLD records are updated, as usually the TLDs (such as dot com or dot net) are only updated every 6 hours or so, and it takes noticably longer before isp caching servers even notice.  You can use that time to create (using the godaddy dns editing interface, whatever that is) the records you need in their new home.

Author Closing Comment

ID: 34292621

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Current date-time from Available WiFi connections 10 37
DNS.exe on Azure 2 23
web server dns redirect 5 38
Changing password for HP switch 5 35
Meet the world's only “Transparent Cloud™” from Superb Internet Corporation. Now, you can experience firsthand a cloud platform that consistently outperforms Amazon Web Services (AWS), IBM’s Softlayer, and Microsoft’s Azure when it comes to CPU and …
Pop culture is prime bait for hackers seeking to infect user’s computers and mobile devices with malicious malware. Hackers know exactly what the latest trends are online and know how to use them to their advantage.
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

792 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