At Fri, 31 Aug 2018 21:38:13 +0200 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> 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.
Yes, this works. I use mail.deepsoft.com for both imap and SquirrelMail and
use the same cert for both SquirrelMail/Apache and dovecot.
>
> best regards
> Ulf
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>
--
Robert Heller -- 978-544-6933
Deepwoods Software -- Custom Software Services
http://www.deepsoft.com/ -- Linux Administration Services
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