[BlueOnyx:21557] Re: LetsEncrypt coming up with wildcard certificates

[Maurice de Laat]

Hello Meaulnes,

On 03-12-17 20:32, Meaulnes Legler @ MailList wrote:

> For instance, on my virtual server vs.domain.tld, the admin interface 
> has a LetsEncrypt certificate as standard. I installed — see above — a 
> 2nd certificate for www.domain.tld. But the mail server, in this case 
> mail.domain.tld, doesn't have one.

If your BO server is called vs.domain.tld, the SMTP server on port 25 
probably presents itself as vs.domain.tld, Most likely is 
mail.domain.tld the MX record in the dns, but not the name of the SMTP 
server.

You can test this by making a connection to your smtp server on the 
commandline, or p.e. example by using
https://mxtoolbox.com/diagnostic.aspx

Kind regards,
Maurice