How to add a NULL MX record


#1

Hello all,

RFC7505 defines the syntax and use of NULL MX records for domains that are not configured to receive email.
In such NULL MX records, the priority should be 0 and the target server name set to a . (single dot). I tried to create such a record in the Cloudflare web interface but it fails when adding it with the following message:
DNS Validation Error (Code: 1004): Invalid content for an MX record (Code: 9009)

Maybe I’m doing it incorrectly. Has anyone succeeded in adding NULL MX records? Or is support for them lacking on Cloudflare?

Thanks in advance for any pointers


#2

Not a feature we support today, but is one we are working on.


#3

@rene.barbier, just got notification this is now supported. You can create an Mx record with a weight of “0” and a value of “.”

Love it when I’m able to deliver new features in a week. :slight_smile:


#4

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