is a self signed certificate always invalid the first time?

[Ralph Seichter]

On 09.08.2017 18:18, Alef Veld wrote:

> Anyone know of any manual, or can I just replace the certs in the
> dovecot and postfix locations with theirs? Do dovecot, postfix and
> apache all support .pem format?

Google "dovecot letsencrypt" is your friend. ;-) If you have questions
about details, we can discuss them of course. Also, please limit your
replies to my messages to the mailing list; you keep triggering my spam
protection.

-Ralph