ACL: Enforce non-usability of control=utf8_downconvert in MAIL ACL. Bug 2239

[exim.git] / src / src / acl.c

diff --git a/src/src/acl.c b/src/src/acl.c
index 5b30535e80750671072da00ff0dacb40b2e062d2..fb8b75bc7b28c72e489b465c83de23336f50a900 100644 (file)
--- a/src/src/acl.c
+++ b/src/src/acl.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2017 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Code for handling Access Control Lists (ACLs) */
@@ -523,7 +523,8 @@ static control_def controls_list[] = {
   },
 #ifdef SUPPORT_I18N
 [CONTROL_UTF8_DOWNCONVERT] =
-  { US"utf8_downconvert",        TRUE, 0 }
+  { US"utf8_downconvert",        TRUE, (unsigned) ~(ACL_BIT_RCPT | ACL_BIT_VRFY)
+  }
 #endif
 };