Docs: add note on HELO rejections, and add requirment on good HELO in

[exim.git] / src / src / configure.default

diff --git a/src/src/configure.default b/src/src/configure.default
index ec60700dfefbef91b2d97dd8d285e26f006e5cbb..ee94d2f910b72636f2217f25e401f752943d6f74 100644 (file)
--- a/src/src/configure.default
+++ b/src/src/configure.default
@@ -436,6 +436,11 @@ acl_check_rcpt:
           control       = submission
           control       = dkim_disable_verify
 
+  # Insist that a HELO/EHLO was accepted.
+
+  require message      = nice hosts say HELO first
+          condition    = ${if def:sender_helo_name}
+
   # Insist that any other recipient address that we accept is either in one of
   # our local domains, or is in a domain for which we explicitly allow
   # relaying. Any other domain is rejected as being unacceptable for relaying.