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Null MX

The No Service MX RR, informally called "null MX", formalizes the existing mechanism by which a domain announces that it accepts no mail, without having to provide a mail server; this permits significant operational efficiencies. 

1.Enter Managed DNS

At the top of the Control Panel, click the DNS Menu and select Managed DNS. 

2. Choose a domain

Select a domain from the either the Recently Updated Domains box, or start typing the domain name in the textbox on the “Select Domain” tab.

 3. Add an MX record 

Under MX Records click the plus sign to add a new record.

4.Configure the MX record

A: Name of the domain configured not to accept any email traffic. 

B: The name server for this domain would be a dot (.)

C:MX Level: 0

D: TTLRecords that are static should have TTL’s set between 1800 (being on the low end) to 86400 seconds (30 minutes to 1-day cache).

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