From a256ebb237babf44b1c5778fa541043628cf2cd5 Mon Sep 17 00:00:00 2001
From: "Steffen (Daode) Nurpmeso" <steffen@sdaoden.eu>
Date: Tue, 21 Feb 2017 21:41:14 +0100
Subject: [PATCH] (BWDIC!) sendout.c:__mta_start(): with SMTP *mta*, do not
 send to aliases!

---
 sendout.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sendout.c b/sendout.c
index 211cfd45..f4fdf42a 100644
--- a/sendout.c
+++ b/sendout.c
@@ -1219,6 +1219,19 @@ __mta_start(struct sendbundle *sbp)
       n_err(_("No SMTP support compiled in\n"));
       goto jstop;
 #else
+      /* C99 */{
+         struct name *np;
+
+         for(np = sbp->sb_to; np != NULL; np = np->n_flink)
+            if(!(np->n_type & GDEL) && (np->n_flags & NAME_ADDRSPEC_ISNAME)){
+               n_err(_("SMTP *mta* cannot send to alias name: %s\n"),
+                  n_shexp_quote_cp(np->n_name, FAL0));
+               rv = FAL0;
+            }
+         if(!rv)
+            goto jstop;
+      }
+
       if (n_poption & n_PO_DEBUG) {
          (void)smtp_mta(sbp);
          rv = TRU1;
-- 
2.11.4.GIT