Good evening!

Let's Encrypt also provides you 3 certs: intermediate, public and private.
Just install them (symlink them) as any other certificate. The order is:

# cat "$PRIV" "$PUB" "$INT" > "$COURIER_COMBINED"

This is my workhorse for that task:
https://github.com/szepeviktor/debian-server-tools/blob/master/security/cert-update.sh

Certbot has serious permission problems: leaves private key with 0644

The other thing is acquiring it.
I am learning these tools, as they give me more control
https://github.com/diafygi/acme-tiny/blob/master/acme_tiny.py
https://github.com/kuba/simp_le
Certbot feels like a bloat-ware. But the support is nice.

All the best!



Idézem/Quoting Jan Müller <muller....@gmail.com>:

> Hi,
> did anyone succeed in installing letsencrypt certificates for imap and/or
> smtp?
>
> Which guide did you follow?
>
> I did some preliminary googling and this looks not bad:
> https://community.letsencrypt.org/t/configure-courier-imap/3620
>
> Thanks for noting any caveats that might pop up.
>
> Regards!
> Jan Müller



SZÉPE Viktor
-- 
+36-20-4242498  s...@szepe.net  skype: szepe.viktor
Budapest, III. kerület





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