I am using https://mojzis.com/software/letsencryptshell/ client. Mainly because I want to be able to use DNS verification.
And when I try to register my email address I get the following message:
‘detail’: ‘DNS problem: NXDOMAIN looking up MX for throughputfocus.com}’, ‘type’: ‘urn:acme:error:invalidEmail’
Does anyone know what it takes to convince LetsEncrypt that my email address is valid?
When I have a look I get this:
And we can see from the spf record that the messagingengine.com mail servers are permitted to send email on behalf of my domain.
dig +short TXT throughputfocus.com
"v=spf1 include:spf.messagingengine.com ?all"