diff -up ./sendmail/milter.c.orig ./sendmail/milter.c
--- a/sendmail/milter.c	2013-01-02 10:15:08.000000000 +0100
+++ b/sendmail/milter.c	2013-01-16 18:58:19.440497919 +0100
@@ -4067,7 +4067,7 @@ milter_helo(helo, e, state)
 	}
 
 	response = milter_command(SMFIC_HELO, helo, strlen(helo) + 1,
-				  SMFIM_EOH, e, state, "helo", false);
+				  SMFIM_HELO, e, state, "helo", false);
 	milter_per_connection_check(e);
 	return response;
 }