Please add support for looking up and adding addresses to LDAP based address books. Also, if this is done, please support Kerberos authentication when communicating with an LDAP server. Reproducible: Always
Pali is working on plugin support for the address book interface in Trojita within his GSoC project. When it is finished, the following will remain to be implemented for a LDAP address book: 1) Add support for multiple plugins being active at the same time. Should be very straightforward. 2) Code an actual LDAP-based address book. This will require using some LDAP library (openldap, perhaps?), and I expect Kerberos authentication will be handled by the actual library we use. Well, patches welcome; I don't see myself actively working on this. If you'd like to get involved, please get in touch, I'll be happy to help you with the Trojita side of things.
Trojitá is no longer maintained, please switch to a maintained alternative like https://apps.kde.org/kmail2/ Sorry for the inconveniences.