Fallback to MAPI SubmitMessage if OOM Send fails
* src/common.h (ERR_SEND_FALLBACK_FAILED): New error code. * src/windowmessages.cpp (gpgol_window_proc): Fallback to SubmitMessage on OOM Send failure.
This is a workaround for a strange case where the write
in the send event fails. This happens for example if
office documents are attached to a mail. In that
case we can fallback to MAPI as we already do when
Outlooks internal Sign / Encrypt is selected.
Maybe we could be so bold as to always send over
- GnuPG-Bug-Id: T4131