+ const uschar * list = rblock->remove_headers;
+ int sep = ':';
+ uschar * s;
+ gstring * g = NULL;
+
+ if (*remove_headers)
+ g = string_cat(NULL, *remove_headers);
+
+ while ((s = string_nextinlist(&list, &sep, NULL, 0)))
+ if (!(s = expand_string(s)))