[Evolution] lookup S/Mime encryption certificates over LDAP?

[RHE <totemorhe gmail com>]

Hi everyone

Is there a way to make Evolution lookup for Recipient S/Mime Encryption
Certificates (aka PublicKeys) from a LDAP addressbook when sending an
encrypted mail?
Or may be over an "LDAP Keyserver" which is technically the same (more
or less)...

If not, is there a Bug/FeatureRequest on this to follow the progress
and/or a planned release date?


context:
The procedure of fetching S/Mime certifcates (aka PublicKeys) for
recipients has become a kind of standard for many (enterprise/automated)
secure mail solutions to provide senders with valid PublicKeys on S/Mime
basis... so i guess this is feature that gets more and more requested in
future...

...which brings me to the question:
Is there any eMail/Groupware client for Linux systems out there that
supports Exchange-EWS Connectivity and S/Mime incl. certificate
(PublicKey) lookup from LDAP..?

thanks in advance for any information
-RHE