From 06a6f188c5fd423e787146f992e5a97f2476de91 Mon Sep 17 00:00:00 2001
From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Tue, 9 Jul 2024 11:23:21 +0800
Subject: [PATCH] Reject "dot, LF" as ending data phase. Bug 3063

---
 src/smtp_in.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/smtp_in.c b/src/smtp_in.c
index eb9c7e6..215a4c7 100644
--- a/src/smtp_in.c
+++ b/src/smtp_in.c
@@ -5110,7 +5110,10 @@ while (done <= 0)
 	dummy call to get the DATA command sent. */
 
 	if (!acl_smtp_predata && cutthrough.cctx.sock < 0)
-	  rc = OK;
+    {
+         if (!check_sync()) goto SYNC_FAILURE;
+          rc = OK;
+    }
 	else
 	  {
 	  uschar * acl = acl_smtp_predata ? acl_smtp_predata : US"accept";
-- 
2.27.0