[BlueOnyx:25141] Re: Quickfix for BO servers with certificates that are old or doesn't work anymore!!!

[Maurice de Laat]

Hi Michael,

> Was this for the FQDN of the server itself or for the Vsites (SNI) as
> well? Or both?
>
It was the FQDN of the server itself. While working on the problem I 
didn't realised we have SNI on dovecot, so did not take a look at SNI. 
If I test it now, the chain presented by SNI is ok.

A colleague just send me this link, which most likely describes the 
problem a bit: 
https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/

Kind regards

Maurice