Diffusion GpgOL 66d0c18df541

Change S/MIME Message Class handling

Authored by aheinecke on May 20 2019, 1:44 PM.


Change S/MIME Message Class handling

* src/olflange.cpp (install_forms): Register new icons
* src/mimemaker.cpp (finalize_message): Use SMIME for encryption.
* src/revert.cpp (gpgol_mailitem_revert): Use standard classes.
* src/mapihelp.cpp (change_message_class_ipm_note_smime)
(mapi_change_message_class): Split up MultipartSigned and

This allows us to use better icons which should lead to
less confusion.

Interoperability issues are also addressed by changing
the message class to a value more standard.