Re: [NTG-context] The certificate of the mailman site has expired

On Mon, 25 Oct 2021 at 00:46, Ramkumar KB via ntg-context wrote:

Taco,

Chrome browser says R3 (in the certificate chain) has expired.

See attached screenshot.

Are you using macOS <= 10.14? I see Let's Encrypt mentioned and that one has been causing some issues lately, partially due to a not-well-defined algorithm for treating multiple certificates in the chain. A bit more about the issue (very macOS-centric) can be read here: https://trac.macports.org/wiki/ProblemHotlist#letsencrypt Mojca