diff --git a/install/rhel/exim-smarthost.conf b/install/rhel/exim-smarthost.conf
index 99b1c90c7..d1f7e7996 100644
--- a/install/rhel/exim-smarthost.conf
+++ b/install/rhel/exim-smarthost.conf
@@ -264,7 +264,7 @@ begin transports
 remote_smtp:
   driver = smtp
   dkim_domain = DKIM_DOMAIN
-  dkim_selector = mail
+  dkim_selector = vmail
   dkim_private_key = DKIM_PRIVATE_KEY
   dkim_canon = relaxed
   dkim_strict = 0