Added option to enable DNSBL debug log output.

src/sbbs3/mailsrvr.h

@@ -109,6 +109,7 @@ typedef struct {
 #define MAIL_OPT_DNSBL_REFUSE		(1<<15) /* Refuse session, return error */
 #define MAIL_OPT_DNSBL_IGNORE		(1<<16) /* Dump mail, return success */
 #define MAIL_OPT_DNSBL_BADUSER		(1<<17) /* Refuse mail (bad user name) */
+#define MAIL_OPT_DNSBL_DEBUG		(1<<20) /* Debug DNSBL activity */
 #define MAIL_OPT_NO_RECYCLE			(1<<27)	/* Disable recycling of server		*/
 #define MAIL_OPT_LOCAL_TIMEZONE		(1<<30)	/* Don't force UTC/GMT */
 #define MAIL_OPT_MUTE				(1<<31)

src/sbbs3/sbbs_ini.c

@@ -80,6 +80,7 @@ static ini_bitdesc_t mail_options[] = {
 	{ MAIL_OPT_DNSBL_REFUSE			,"DNSBL_REFUSE"			},
 	{ MAIL_OPT_DNSBL_IGNORE			,"DNSBL_IGNORE"			},
 	{ MAIL_OPT_DNSBL_BADUSER		,"DNSBL_BADUSER"		},
+	{ MAIL_OPT_DNSBL_DEBUG			,"DNSBL_DEBUG"			},
 	{ MAIL_OPT_NO_RECYCLE			,"NO_RECYCLE"			},
 	{ MAIL_OPT_LOCAL_TIMEZONE		,"LOCAL_TIMEZONE"		},
 	{ MAIL_OPT_MUTE					,"MUTE"					},