X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/53cc1417d804b27674f9e18fec09dee3badd080b..bc3e80bcacbe4be437fe43a8babe2e4896837d95:/src/src/route.c

diff --git a/src/src/route.c b/src/src/route.c
index 1d87b079a..225a19046 100644
--- a/src/src/route.c
+++ b/src/src/route.c
@@ -3,7 +3,7 @@
 *************************************************/
 
 /* Copyright (c) University of Cambridge 1995 - 2018 */
-/* Copyright (c) The Exim Maintainers 2020 */
+/* Copyright (c) The Exim Maintainers 2020 - 2021 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions concerned with routing, and the list of generic router options. */
@@ -288,7 +288,12 @@ for (router_instance * r = routers; r; r = r->next)
 
   /* Build a host list if fallback hosts is set. */
 
-  host_build_hostlist(&(r->fallback_hostlist), r->fallback_hosts, FALSE);
+    {
+    int old_pool = store_pool;
+    store_pool = POOL_PERM;
+    host_build_hostlist(&r->fallback_hostlist, r->fallback_hosts, FALSE);
+    store_pool = old_pool;
+    }
 
   /* Check redirect_router and pass_router are valid */