#define MIME_CONTENT_TRANSFER_ENCODING   "Content-Transfer-Encoding"

Macro declaration to protect code from misspelling "Content-Transfer-Encoding" MIME header.

This macro can be used by vortex_frame_set_mime_header and vortex_frame_get_mime_header.

Referenced by vortex_frame_create_full(), and vortex_frame_create_full_ref().