[CentOS] Certificates

[Ulf Volmer]

On 31.08.2018 21:31, Michael Schumacher wrote:

> certbot works only with ports 80 or 443? Can lego work with with IMAP
> ports like 143 or 993? The documentation is not very clear.

basically - independent of the client - letsencrypt will only support
http/https or dns based challenges.

so - if you want to get certificates for an imap only server, you will
have to setup an webserver for the challenge. or deal with your dns server.

best regards
Ulf