X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/1435d4b244871b65c6bb07878ddd2241ae8d2545..af542dcfa62fc2341e8253f10c5c778b887444b9:/src/src/routers/dnslookup.c

diff --git a/src/src/routers/dnslookup.c b/src/src/routers/dnslookup.c
index d2be40e0f..e4f7a2539 100644
--- a/src/src/routers/dnslookup.c
+++ b/src/src/routers/dnslookup.c
@@ -291,6 +291,11 @@ for (;;)
   /* Deferral returns forthwith, and anything other than failure breaks the
   loop. */
 
+  if (rc == HOST_FIND_SECURITY)
+    {
+    addr->message = US"host lookup done insecurely";
+    return DEFER;
+    }
   if (rc == HOST_FIND_AGAIN)
     {
     if (rblock->pass_on_timeout)