dovecot - Feb 2018 - `mail_crypt` Doesn't Appear to be Working

Dovecot version: 2.2.22 (fe789d2)

I generated an EC key from the page https://wiki2.dovecot.org/Plugins/. For 
reference here's my /etc/dovecot/conf.d/10-mail-crypt.conf file:

----
mail_plugins = $mail_plugins mail_crypt

plugin {
    # mail_crypt_global_private_key = </etc/dovecot/ecprivkey.pem
    mail_crypt_global_public_key = </etc/dovecot/ecpubkey.pem
    mail_crypt_save_version = 2
}
----

I saw in a previous message on this mailing list that messages can be 
encrypted without the private key, so it's stored elsewhere. :-)

After restarting dovecot and sending myself a message I found that the message 
was still unencrypted. Nothing in /var/log/dovecot/*.log files or syslog 
indicated any problem loading the plugin (I even made some mistakes with the 
filename beforehand, and errors indicated it was trying to find the plugin).

In case in matters dovecot was installed as part of the automated iredmail  
install (https://iredmail.org). I didn't modify the dovecot.conf file after 
installation (except for thinking I needed to add `mail_crypt` to `plugins`, 
then figuring I didn't).

Any help is appreciated.

Thank you.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 630 bytes
Desc: This is a digitally signed message part.
URL:
<https://dovecot.org/pipermail/dovecot/attachments/20180216/c3526101/attachment.sig>

> On February 16, 2018 at 7:31 PM "jordan.h at startmail.com
mailto:jordan.h at startmail.com " wrote:
> 
> 
>     Dovecot version: 2.2.22 (fe789d2)
> 
>From the mail_crypt page:
?This feature is available in v2.2.27+?

>     I generated an EC key from the page https://wiki2.dovecot.org/Plugins/.
For
>     reference here's my /etc/dovecot/conf.d/10-mail-crypt.conf file:
> 
>     ----
>     mail_plugins = $mail_plugins mail_crypt
> 
>     plugin {
>     # mail_crypt_global_private_key = </etc/dovecot/ecprivkey.pem
>     mail_crypt_global_public_key = </etc/dovecot/ecpubkey.pem
>     mail_crypt_save_version = 2
>     }
>     ----
> 
>     I saw in a previous message on this mailing list that messages can be
>     encrypted without the private key, so it's stored elsewhere. :-)
> 
>     After restarting dovecot and sending myself a message I found that the
message
>     was still unencrypted. Nothing in /var/log/dovecot/*.log files or
syslog
>     indicated any problem loading the plugin (I even made some mistakes
with the
>     filename beforehand, and errors indicated it was trying to find the
plugin).
> 
>     In case in matters dovecot was installed as part of the automated
iredmail
>     install (https://iredmail.org). I didn't modify the dovecot.conf
file after
>     installation (except for thinking I needed to add `mail_crypt` to
`plugins`,
>     then figuring I didn't).
> 
>     Any help is appreciated.
> 
>     Thank you.
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://dovecot.org/pipermail/dovecot/attachments/20180216/885befe9/attachment-0001.html>