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MX records - IP address change

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2 replies

by ch0d0a

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We are about to change our mail server IP address - and will be updating our MX record. Is there a way to have both addresses listed, so that email continues to process without interuption?

We have one server behind a firewall.

We have a working MX record for our public IP address for mail.wa******.org We would like to add the new address (2nd MX rec?) then removed the old one after 24 hours.

2 replies

by fregeus

I am assuming that you wish to change both the public IP and the private IP.

If you have the extra public IP, just create your NAT on your firewall and create a secondary MX record. Actually, create a secondary MX record with your current public IP and put the new public IP as your primary MX record.

I would suggest that you wait 72 hrs before removing the old IP address tho, just to be sure all Cache DNS entries have reset everywhere.

GL

TCB

by eliel1949

Where is the public ip address changed so that incoming email goes thru? We recently changed isp providers. Everything was configured so that people can connect online but incoming email didn't go thru. I checked our domain in DNS Tools and found out that our mail server is still showing the old isp public ip. How is that changed? Thank you for your response.

EL

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