X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/16b33efd9367c4f0a2560b2facd50797fd17a2b6..a5ffa9b475a426bc73366db01f7cc92a3811bc3a:/src/src/transport.c

diff --git a/src/src/transport.c b/src/src/transport.c
index 04b67f9e9..20d0b8a52 100644
--- a/src/src/transport.c
+++ b/src/src/transport.c
@@ -969,9 +969,11 @@ if (!(tctx->options & topt_no_headers))
 
   if (tctx->options & topt_add_delivery_date)
     {
-    uschar buffer[100];
-    int n = sprintf(CS buffer, "Delivery-date: %s\n", tod_stamp(tod_full));
-    if (!write_chunk(tctx, buffer, n)) goto bad;
+    uschar * s = tod_stamp(tod_full);
+
+    if (  !write_chunk(tctx, US"Delivery-date: ", 15)
+       || !write_chunk(tctx, s, Ustrlen(s))
+       || !write_chunk(tctx, US"\n", 1)) goto bad;
     }
 
   /* Then the message's headers. Don't write any that are flagged as "old";