Kleopatra's configure dialog can be accessed via -> .
Each of its pages is described in the sections below.
On this page, you can configure which LDAP servers to use for S/MIME certificate searches, and which key servers to use for OpenPGP certificate searches.
This is simply a more user-friendly version of the same settings you also find in the section called “Configuring the GnuPG System”. Everything you can configure here, you can configure there, too.
Proxy settings can be configured for HTTP and LDAP in
the section called “Configuring aspects of S/MIME Validation”, but only
for GpgSM. For GPG, due to the complexity of keyserver
options in GPG and lack of proper support for them in
GpgConf, you currently need to modify the config file
gpg.conf
directly. Please refer to the