dnssec-analyzer.verisignlabs.com aaaa lookup fail

[Lee]

On Sun, Apr 28, 2024 at 2:18 AM Walter H. via bind-users
<bind-users at lists.isc.org> wrote:

something that I replied to and got this in response:

Error Icon
 Message blocked
Your message to Walter.H@[..snip..] has been blocked. See technical
details below for more information.

The response from the remote server was:
554 5.7.1 : Client host rejected: Use IPv4



Which is strangely appropriate when trying to troubleshoot an issue
that applies only to IPv6.
But I've forgotten how to turn off IPv6 :(