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 The 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.

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.
Scale it in WD Gold

With up to ten times the workload capacity of desktop drives, WD Gold hard drives employ advanced technology to deliver among the best in reliability, capacity, power efficiency and performance.

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

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
new server install 2012 r2 essentials 1 23
SharePoint 2013 Alternate Access Mappings not working 2 56
What Can't I Connect by FTP??? 27 55
Network access 4 21
When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
For many of us, the  holiday season kindles the natural urge to give back to our friends, family members and communities. While it's easy for friends to notice the impact of such deeds, understanding the contributions of businesses and enterprises i…
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.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor ( If you're looking for how to monitor bandwidth using netflow or packet s…

910 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

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now