I have used Apache with mod_md before, but I suddenly have trouble registering a new account. It refuses admin@nat64check.org and claims that the email domain doesn’t have MX or A records. That email address works just fine though. Any thoughts?
My domain is:
zaphod.nat64check.org
I’m using Apache mod_md with this config:
MDomain zaphod.nat64check.org auto
<VirtualHost *:80>
ServerName zaphod.nat64check.org
ServerAdmin admin@nat64check.org
</VirtualHost>
<VirtualHost *:443>
ServerName zaphod.nat64check.org
ServerAdmin admin@nat64check.org
Protocols h2 http:/1.1
SSLEngine on
</VirtualHost>
It produced this output:
[Fri Jun 15 17:29:40.156891 2018] [md:warn] [pid 9311:tid 139743569250048] (20014)Internal error (specific information not available): acme problem urn:acme:error:invalidEmail: Error creating new registration :: empty DNS response validating email domain - no MX/A records
My web server is (include version):
2.4.33-1+ubuntu16.04.1+deb.sury.org+1
The operating system my web server runs on is (include version):
Ubuntu 16.04
I can login to a root shell on my machine (yes or no, or I don’t know):
yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):
no