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Change a Domain's Mail Servers (MX Record)

The following steps will teach you how to change the MX Record of your domain, changing the mail server that your incoming mail is routed to.

To edit the MX Records you must supply at least two mail server addresses. The addresses must be domains or subdomains and cannot be IP addresses. If you are only able to access your mail server via its IP address, you must enter an IP address for your domain's MX Record instead.

Please note:
Changing your MX Records will change where your incoming mail is routed. It is suggested not to alter MX Records unless you are sure of the changes as this can potentially cause mail delivery problems.
Step 1
Log in to your 1&1 Control Panel and navigate to the Domains section.
Step 2
From the Domains panel, click on Manage Domains.
Domains > Manage Domains
Domains > Manage Domains

Step 3
Click the arrow icon next to the domain in question to open the domain options drop-down menu. Domain overview
Domain overview
Step 4
Select Edit DNS Settings from the Domain Settings section of the options menu. Domain overview
Domain overview
Step 5
You will not be able to edit the MX record for your domain unless you are using the 1&1 name servers. If you are using a CNAME record or other DNS, you will not be able to make a change to the MX records within the 1&1 Control Panel and will need to make this change with your current DNS host.

Please note that mail server priority is usually set in multiples of 10 with the lowest number taking top priority (similar to golf). You must enter at least two mail server addresses for the MX record.

  • Select Other mail server.
  • Enter the first mail server address into the MX 1 / Prio text box followed by the mail server Priority in the second text box.
  • Enter the second mail server address into the MX 2 / Prio text box followed by the mail server Priority in the second text box.
  • Repeat for the third and fourth mail servers if needed although only two addresses are required.
Click on Save to save your changes.
MX records editor
MX records editor
Please note:
All DNS changes, though live on the 1&1 Server within minutes, may take up to 1 hour to be fully updated and recognised by all servers/computers on the Internet. If you are using your own name server, it will take 72 hours.
For additional information, you may want to reference: