/* Previous success */
-if (sender_host_name != NULL) return OK;
+if (sender_host_name) return OK;
/* Previous failure */
enum { SEEN_DEFAULT, SEEN_READONLY, SEEN_WRITE };
const uschar * list = arg;
-int slash = '/', equal = '=', interval, mode = SEEN_DEFAULT, yield = FAIL;
+int slash = '/', interval, mode = SEEN_DEFAULT, yield = FAIL;
BOOL before;
int refresh = 10 * 24 * 60 * 60; /* 10 days */
const uschar * ele, * key = sender_host_address;