Accept localhost

Signed-off-by: Stephen Gran <steve@lobefin.net>

diff --git a/modules/exim/files/common/exim4.conf b/modules/exim/files/common/exim4.conf
index d0762fb05a939fc937cc03fa6af20352ca319978..d13f0a0a413d4fac9fc5243c9e6170972c8827d5 100644 (file)
--- a/modules/exim/files/common/exim4.conf
+++ b/modules/exim/files/common/exim4.conf
@@ -316,6 +316,9 @@ check_helo:
 #!!# ACL that is used after the RCPT command on the submission port
 check_submission:
 
+  # Accept if the source is local SMTP (i.e. not over TCP/IP).
+  # We do this by testing for an empty sending host field.
+  accept  hosts = :
   # Defer after too many bad RCPT TO's.  Legit MTAs will retry later.
   # This is a rough pass at preventing addres harvesting or other mail blasts.