#define DELIVER_MUA_FAILED 2 /* Failure when mua_wrapper is set */
#define DELIVER_NOT_ATTEMPTED 3 /* Not tried (no msg or is locked */
#define DELIVER_MUA_FAILED 2 /* Failure when mua_wrapper is set */
#define DELIVER_NOT_ATTEMPTED 3 /* Not tried (no msg or is locked */
enum { DNS_SUCCEED, DNS_NOMATCH, DNS_NODATA, DNS_AGAIN, DNS_FAIL };
enum { DNS_SUCCEED, DNS_NOMATCH, DNS_NODATA, DNS_AGAIN, DNS_FAIL };