Dovecot send duplicated certificates when using ssl_alt_cert

[Aki Tuomi]

On 17.05.2018 16:33, @lbutlr wrote:
> On 2018-05-16 (08:54 MDT), Jean-Daniel Dupas <jddupas at xooloo.com> wrote:
>> My problem is that when connecting, dovecot includes 2 copies of Let's Encrypt Authority X3 in the certificate chain.
> I think Dovecot 2.2 also has this issue, if I remember previous posts accurately. Recommendations to include the full chain in the cert didn't seem to work.
>

Hi!

This is a thing that gets fixed in 2.3.2, but it's also OpenSSL version
dependent, so if you are using older than 1.1.0, you'll get this issue,
due to how OpenSSL deals with the certs.

Aki