On Wed, Nov 06, 2024 at 02:47:00PM +0100, Mechiel Lukkien via mailop wrote:
> While we're on the topic of underscores. What about underscores in MX records?
They're invalid in both the owner name and the exchange name.
> I've seen mx records like _dc-mx.[domain] set by cloudflare.
Is by cloudflare, or their customer, that is DNS-hosted by CloudFlare,
customers presumably have some leeway to put garbage in their DNS zones.
--
Viktor.
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