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Dnd
Asked: 2021-02-26 01:45:23 +0800 CST

MX record for domain and subdomain

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Is it possible to setup a MX record for example.com and a.example.com on the same DNS server in the same zone and is this a good practice?

Some like this:

example.com.   IN  A   10.24.233.214
a.example.com. IN  A   10.24.233.289
   
example.com.   IN  MX  10 example.com.
a.example.com. IN  MX  10 a.example.com.
domain-name-system bind mx-record

1 Answers

  1. Best Answer

    It is possible and if you don't have other needs to delegate subdomain to its own zone, it's a good practice.

    But, your particular example is useless. The mail is delivered to address under A record if MX doesn't exist as a fallback, so in your case you if you remove both MX records everything will work the same.

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