#define is_multipart(x) \
((x)->type == TYPEMULTIPART \
|| ((x)->type == TYPEMESSAGE && (!strcasecmp((x)->subtype, "rfc822") \
#define is_multipart(x) \
((x)->type == TYPEMULTIPART \
|| ((x)->type == TYPEMESSAGE && (!strcasecmp((x)->subtype, "rfc822") \